I have found so many conflicting views on how to do this type of build that I am now totally confused...

Does high dex effect only the hit rolls on ranged attacks or does it also effect damage?

My main aim with this character is efficient and deadly ranged combat, with reasonable melee skills for when it's required... weapon choice I'm thinking longbow and dual rapiers

So I'm posting a build in the hopes that I have actually understood a bit how this class works...

Code:
Neutral Good
Elf (20 Ranger) 
Hit Points: 264
Spell Points: 478 
BAB: 20\20\25\30\30
Fortitude: 13
Reflex: 18
Will: 8

                  Starting            Ending          Feat/Enhancement
Abilities        Base Stats         Base Stats         Modified Stats
(32 Point)       (Level 1)          (Level 20)           (Level 20)
Strength             16                 20                   20
Dexterity            18                 19                   22
Constitution         12                 12                   12
Intelligence          8                  8                    8
Wisdom               14                 14                   14
Charisma              8                  8                    8

                  Starting            Ending          Feat/Enhancement
                 Base Skills        Base Skills        Modified Skills
Skills           (Level 1)          (Level 20)          (Level 20)
Jump                  7                 28                   28
Search                3                 22                   24
Spot                  6                 25                   27
Tumble                6                 17                   17
Use Magic Device      1                 10                   10

Level 1 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Reptillian
Feat: (Selected) Point Blank Shot

Level 3 (Ranger)
Feat: (Selected) Weapon Focus: Ranged Weapons

Level 5 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Undead

Level 6 (Ranger)
Feat: (Selected) Mental Toughness

Level 9 (Ranger)
Feat: (Selected) Improved Critical: Ranged Weapons

Level 10 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Evil Outsider

Level 12 (Ranger)
Feat: (Selected) Improved Critical: Piercing Weapons

Level 15 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Construct
Feat: (Selected) Toughness

Level 18 (Ranger)
Feat: (Selected) Toughness

Level 20 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Elemental


Enhancements
Enhancement: Ranger Arcane Archer: Imbue Acid Arrows
Enhancement: Ranger Arcane Archer: Imbue Explosive Arrows
Enhancement: Ranger Arcane Archer: Imbue Force Arrows
Enhancement: Ranger Arcane Archer: Imbue Force Burst Arrows
Enhancement: Ranger Arcane Archer: Imbue Slaying Arrows
Enhancement: Ranger Arcane Archer: Imbue Terror Arrows
Enhancement: Ranger Master of Archery
Enhancement: Elven Dexterity I
Enhancement: Aerenal Elf Melee Attack I
Enhancement: Aerenal Elf Melee Attack II
Enhancement: Aerenal Elf Melee Damage I
Enhancement: Aerenal Elf Melee Damage II
Enhancement: Elven Ranged Attack I
Enhancement: Elven Ranged Attack II
Enhancement: Elven Ranged Damage I
Enhancement: Elven Ranged Damage II
Enhancement: Racial Toughness I
Enhancement: Racial Toughness II
Enhancement: Ranger Favored Attack I
Enhancement: Ranger Favored Attack II
Enhancement: Ranger Favored Damage I
Enhancement: Ranger Favored Damage II
Enhancement: Ranger Favored Damage III
Enhancement: Ranger Favored Damage IV
Enhancement: Ranger Favored Defense I
Enhancement: Ranger Favored Defense II
Enhancement: Ranger Favored Defense III
Enhancement: Ranger Arcane Archer: Conjure +2 Arrows
Enhancement: Ranger Arcane Archer: Conjure +3 Arrows
Enhancement: Ranger Arcane Archer: Conjure +4 Arrows
Enhancement: Ranger Arcane Archer: Conjure +5 Arrows
Enhancement: Ranger Arcane Archer I
Enhancement: Ranger Devotion I
Enhancement: Ranger Energy of the Wild I
Enhancement: Ranger Energy of the Wild II
Enhancement: Ranger Energy of the Wild III
Enhancement: Ranger Dexterity I
Enhancement: Ranger Dexterity II
The first FE (Reptilian) will be changed to "Giant" after Korthos Island

I also ended up with 2 skill points left over (so that Tumble and UMD were round numbers rather than .5's) not sure where to put them (was thinking either swim, heal or concentrate)


Any experienced rangers that can provide some good advice? Thanks heaps