Hey everyone. I've made my way back to DDO and I'm looking for some input on my latest attempt at a rogue build.

I've run the full gambit of rogue failures. You know, neglecting Str/DPS, expecting to get traps with no gear, no UMD, and all that other good stuff. After doing some looking around here, I've decided to get a game plan this time and try out an assassin rogue.


Code:
Character Plan by DDO Character Planner Version 03.14.01
DDO Character Planner Home Page

Level 20 True Neutral Drow Male
(20 Rogue) 
Hit Points: 242
Spell Points: 0 
BAB: 15\15\20\25\25
Fortitude: 9
Reflex: 21
Will: 6

                  Starting          Feat/Enhancement
Abilities        Base Stats          Modified Stats
(28 Point)       (Level 1)             (Level 20)
Strength             14                    16
Dexterity            16                    28
Constitution         14                    16
Intelligence         16                    20
Wisdom                8                    10
Charisma             10                    12

Tomes Used
+2 Tome of Strength used at level 20
+3 Tome of Dexterity used at level 20
+2 Tome of Constitution used at level 20
+2 Tome of Intelligence used at level 20
+2 Tome of Wisdom used at level 20
+2 Tome of Charisma used at level 20

                  Starting          Feat/Enhancement
                 Base Skills         Modified Skills
Skills           (Level 1)            (Level 20)
Balance               7                    32
Bluff                 4                    30
Concentration         2                     3
Diplomacy             4                    24
Disable Device        7                    28
Haggle                0                     1
Heal                 -1                     0
Hide                  7                    40
Intimidate            0                     1
Jump                  5                    25
Listen               -1                     2
Move Silently         7                    40
Open Lock             7                    32
Perform               n/a                   n/a
Repair                3                     5
Search                7                    30
Spot                  3                    25
Swim                  2                     3
Tumble                4                    10
Use Magic Device      4                    24

Level 1 (Rogue)
Feat: (Selected) Two Weapon Fighting
Enhancement: Rogue Damage Boost I
Enhancement: Rogue Sneak Attack Training I
Enhancement: Improved Hide I
Enhancement: Improved Move Silently I


Level 2 (Rogue)
Enhancement: Drow Weapon Damage I
Enhancement: Rogue Dexterity I


Level 3 (Rogue)
Feat: (Selected) Weapon Finesse
Enhancement: Elven Dexterity I
Enhancement: Rogue Sneak Attack Accuracy I


Level 4 (Rogue)
Ability Raise: DEX
Enhancement: Rogue Damage Boost II
Enhancement: Rogue Subtle Backstabbing I
Enhancement: Improved Hide II
Enhancement: Improved Move Silently II


Level 5 (Rogue)
Enhancement: Drow Weapon Attack I


Level 6 (Rogue)
Feat: (Selected) Toughness
Enhancement: Rogue Assassin I
Enhancement: Rogue Sneak Attack Accuracy II


Level 7 (Rogue)
Enhancement: Rogue Subtle Backstabbing II
Enhancement: Rogue Sneak Attack Training II


Level 8 (Rogue)
Ability Raise: DEX
Enhancement: Racial Toughness I
Enhancement: Rogue Sneak Attack Training III


Level 9 (Rogue)
Feat: (Selected) Improved Two Weapon Fighting
Enhancement: Drow Weapon Damage II


Level 10 (Rogue)
Feat: (Rogue Bonus) Crippling Strike
Enhancement: Rogue Faster Sneaking I
Enhancement: Rogue Sneak Attack Accuracy III


Level 11 (Rogue)
Enhancement: Drow Weapon Attack II


Level 12 (Rogue)
Ability Raise: DEX
Feat: (Selected) Improved Critical: Piercing Weapons
Enhancement: Racial Toughness II
Enhancement: Rogue Assassin II


Level 13 (Rogue)
Feat: (Rogue Bonus) Improved Evasion
Enhancement: Elven Dexterity II


Level 14 (Rogue)
Enhancement: Rogue Dexterity II


Level 15 (Rogue)
Feat: (Selected) Power Attack
Enhancement: Rogue Sneak Attack Training IV


Level 16 (Rogue)
Ability Raise: DEX
Feat: (Rogue Bonus) Opportunist
Enhancement: Rogue Sneak Attack Accuracy IV


Level 17 (Rogue)
Enhancement: Rogue Faster Sneaking II


Level 18 (Rogue)
Feat: (Selected) Greater Two Weapon Fighting
Enhancement: Rogue Subtle Backstabbing III
Enhancement: Rogue Assassin III


Level 19 (Rogue)
Feat: (Rogue Bonus) Slippery Mind
Enhancement: Rogue Subtle Backstabbing IV


Level 20 (Rogue)
Ability Raise: DEX
Enhancement: Rogue Deadly Shadow
Enhancement: Rogue Faster Sneaking III

I have a few questions and concerns before I roll this guy however.

1. I like the 16 INT but something keeps telling me its too high. The reason I went 16 is I want to max UMD, bluff, and diplomacy as well as the other skills we have to max. I ended up with more skill points than I think I need. On the other hand, I heard it helps with landing assassinate and its giving me a nicer search/disable mod.

2. I'm not hitting 30 DEX only 28 and thats with a +3 tome. I think the reason why is I'm not going 18 DEX at creation. Is this something to even worry about?

3. Is taking subtle backstabbing 4 too much? Can I get away with lvl2?

4. I've taken the faster sneaking route this time. I usually run with Rogue skill boost and I see some others that do the same but I found I only really used it when I'm about to attempt a disable. Whats your thoughts on what we can pick as "freebies"?

5. Am I waiting too late in the build to take Power attack(lv15)?

6. If I'm determined to keep Drow, would a STR/kopesh build be as viable as DEX? I don't think it would but then again I'm a noob. I've already accepted the fact he is not gonna be the hardest hitting rogue ever but I would like him to pull his weight and maybe someone elses.

The reason I ask all this is because I've really never seen any DDO outside of the marketplace. I always re-roll around level 6-7. I want to take this one the distance and see some higher content and at least be good on paper.

Thanks for taking a look at my mess.