I noticed you have EWP (Courtblade) at 3rd level and Improved Critical (Thinblade) at 11th. I'm assuming this is a copy-paste error. Are you using the Courtblade?
Yeah, that's an error, I'm using the Courtblade. I'm just gonna go with your (and kurashu's) suggestion and drop Imp.Crit, I'm sure I'll be able to get the Keen enchantment by then.
Which do you recommend going for first: Keen or Spell Storing?
I forgot what your Str score is? If it's at least 13, Power Attack seems like a prime candidate for a gish. Pick up Wraith Strike and you can do some serious damage with that (although I'm not sure if you have the books necessary for that).
15 14 12 16 10 10
Strength will go to 16 at level 4, then all the other Ability Score increases will go to Int.
J0lt: have you given your spell selection any thought?
I've gone through core and picked out a few basic spells really quickly:
1
Burning Hands
Magic Missile
Mage Armour
Identify
Feather Fall
2
Scorching Ray
Invisibility
Revised Feats List:
1 - Improved Toughness
3 - Exotic Weapon Proficiency (elven courtblade)
4 - (fighter bonus feat) Improved Initiative
5 - (fighter bonus feat) Power Attack
6 - ?
8 - (spellsword bonus feat) Quicken Spell
9 - Arcane Strike
11 - (eldritch knight bonus feat) Cleave
12 - Practiced Spellcaster
15 - ?
18 - ?
This leaves me 3 more feat slots... More ideas! More, I say!