Help Me With my Drow Sorcerer Build!

[Xiadais]

I don't have the character planner builder thing. Yes, I'm new to the forums, but not to DnD (and I like to think I have some experience in DDO). This build is, overall, a drow fire/cold nuker sorcerer with a few good buffs, and a tiny bit of CC and insta-death. Please stick to what it's intended to be and don't tell me to make it WF or something.
So here is my build so far:

*Race*
Drow Elf

*Class*
Sorcerer/20

*Base Stats*
  28pt/30pt/32pt
Str  8/  10/  10
Dex 10/  10/  10
Con 14/  14/  14
Int 12/  12/  12
Wis  8/   8/  10
Cha 20/  20/  20 <-Lvl up points into Cha

An alternate 32-point would be to take the points off of wisdom and put them into int for more skills. Thoughts on which is better?

*Feats*
Lvl 1~ Maximize Spell
Lvl 3~ Empower Spell
Lvl 6~ Extend Spell
Lvl 9~ Toughness
Lvl 12~Heighten Spell
Lvl 15~Spell Penetration
Lvl 18~Greater Spell Penetration

*Skills*
23 Ranks Concentration
11 Ranks UMD
11 Ranks Diplomacy
1 Rank Tumble
If +2 INT tome, put into Balance
If +4 INT tome, how the heck did you get one before lvl 20? (do whatever you want)
If more INT with 2nd TR, same as with +4 tome's notes

Notes: The enhancements start at level 4 because I use veteran status. The max spent per level that I have posted is how much AP you have at the START of the level.

*Enhancements*
Lvl 4~
Sorcerer Energy of the Dragonblooded I (1AP) 1 spent
Sorcerer Elemental Manipulation I (1AP) 2 spent
Sorcerer Charisma I (2AP) 4 spent
Sorcerer Improved Maximizing I (2AP) 6 spent
Sorcerer Improved Empowering I (2AP) 8 spent
Sorcerer Lineage of Elements I (1AP) 9 spent
Sorcerer Energy Manipulation I (1AP) 10 spent
Sorcerer Elemental Manipulation II (2AP) 12 spent/12
Lvl 5~
Sorcerer Wand and Scroll Mastery I (1AP) 13 spent
Sorcerer Lineage of Energy I (1AP) 14 spent
Sorcerer Energy of the Dragonblooded II (2AP) 16 spent/16
Lvl 6~
Sorcerer Lineage of Deadly Elements I (1AP) 17 spent/20
Lvl 7~
Sorcerer Charisma II (4AP) 21 spent
Sorcerer Elemental Manipulation III (3AP) 24 spent/24
Lvl 8~
Sorcerer Lineage of Elements II (2AP) 26 spent/28
Lvl 9~
Drow Racial Toughness I (1AP) 27 spent/32
Drow Racial Toughness II (2AP) 29 spent/32
Sorcerer Energy of the Dragonblooded III (3AP) 32 spent/32
Lvl 10~
Sorcerer Lineage of Deadly Elements II (2AP) 34 spent/36
Lvl 11~
Sorcerer Elemental Manipulation IV (4AP) 38 spent/40
Lvl 12~
Sorcerer Lineage of Elements III (3AP) 41 spent/44
Lvl 13~
Sorcerer Improved Maximizing II (4AP) 45 spent
Sorcerer Lineage of Deadly Elements III (3AP) 48 spent/48
Lvl 14~
Sorcerer Energy of the Dragonblooded IV (4AP) 52 spent/52
Lvl 15~
Sorcerer Improved Spell Penetration I (2AP) 54 spent/56
Lvl 16~
Sorcerer Improved Spell Penetration II (4AP) 58 spent/60
Lvl 17~
Sorcerer Improved Heightening I (4AP) 62 spent
Sorcerer Wand and Scroll Mastery II (2AP) 64 spent/64
Lvl 18~
Sorcerer Wand and Scroll Mastery III (3AP) 67 spent
Sorcerer Lineage of Deadly Energy I (1AP) 68 spent/68
Lvl 19~
nothing (0AP) 68 spent/72
Lvl 20~
Sorcerer Improved Spell Penetration III (6AP) 74 spent
Sorcerer Bloodline of Power (2AP) 76 spent/76
Maxed XP~
Sorcerer Improved Empowering II (4AP) 80 spent - done

*Condensed Enhancements*
Sorcerer Bloodline of Power
Sorcerer Charisma II
Drow Racial Toughness II
Sorcerer Improved Spell Penetration III
Sorcerer Wand and Scroll Mastery III
Sorcerer Improved Maximizing II
Sorcerer Improved Empowering II
Sorcerer Improved Heightening I
Sorcerer Energy of the Dragonblooded IV
Sorcerer Elemental Manipulation IV
Sorcerer Lineage of Elements III
Sorcerer Lineage of Deadly Elements III
Sorcerer Energy Manipulation I
Sorcerer Lineage of Energy I
Sorcerer Lineage of Deadly Energy I

Work-in-Progress Spell List... I need help with the spells in red. (Made red for ease of viewing for those lazy people out there...)

1st Level
Jump
Nightshield
Niac's Cold Ray -> Tumble @ Level 9
Expeditious Retreat -> Magic Missiles @ Level 7
 
2nd Level
Blur
Knock
Resist Energy
Scorching Ray
 
3rd Level
Displacement
Fireball -> Rage @ Level 14
Frost Lance
Haste
 
4th Level
Dimension Door
Fire Shield
Stoneskin
Wall of Fire
 
5th Level
Cone of Cold
Ball Lightning
Cloudkill
Protection From Elements
 
6th Level
Disintegrate
Greater Heroism
Flesh to Stone/Chain Lightning
(right now I'm thinking Chain Lightning)
 
7th Level
Delayed Blast Fireball
Finger of Death
Waves of Exhaustion/Otto's Sphere of Dancing
(right now I'm thinking Sphere because it sounds like WoEx is getting nerfed soon)
 
8th Level
Polar Ray
and 2 of:
Incendiary Cloud; Horrid Wilting; Otto's Irresistible Dance; Charm Monster, Mass
(right now I'm thinking Incendiary Cloud and Otto's)
 
9th Level
Meteor Swarm
Wail of the Banshee
Energy Drain/Hold Monster, Mass
(right now I'm thinking 2nd option)

I would like to hear ideas for any changes in enhancements and help with my spells. If there's still something wrong with my feats, tell me. Also, any other recommendations would be nice as long as they are somewhat related to what I'm trying to do with the build.