I ended up going with a fairly solid Fighter 1/Conjurer 5/Eldritch Knight 7/Spellsword 1. The GM has a highly overpowered stat generation system (the game started back in 2001, and has been going ever since, so he lets new players use the same rolling method that he allowed back then, even though he knows better now), so my stats are, with items:
Str 24
Dex 16
Con 16
Int 16
Wis 14
Cha 11
HP 87
AC 24 (+7 +3 mithril chain shirt, +3 Dex, +1 natural armor, +2 deflection, +1 luck)
I'm considering getting +2 twilight mithril full-plate instead. I'd end up with a 15% spell failure chance, and I could ignore 10% of that with Spellsword, so I'd only have a 5% spell failure chance. A difference of 3 points of AC, and reducing my speed by 10. Plus 9000 gp or so because mithril fullplate costs more than mithril chain shirt. I don't know if it's worth it.
BAB +11
Atk +22 +4 Greatsword (2d6+14)
Skills - Climb +18, Concentration +20, Jump +33, Knowledge (arcana) +15, Spellcraft +20, Swim +11, Tumble +11.
Feats - Dodge, Mobility, Spring Attack, Combat Expertise, Whirlwind Attack, Power Attack, Arcane Strike (Complete Warrior), Arcane Thesis (dimension leap - PHB 2), Scribe Scroll, Quicken Spell
Items: Boots of Striding and Springing, +3 mithril shirt, +4 greatsword, ring of freedom of movement, handy haversack, ring of protection +2, amulet of natural armor +1, ioun stone of +1 Luck AC, gloves of dexterity +2, belt of strength +4, goggles of night, cloak of resistance +2
My typical spells prepared list will look something like this:
6th - True Seeing, Acid Fog, Summon Monster 6
5th - Storm Touch (Magic of Eberron), Dimension Shuffle, quickened dimension leap x2
4th - Greater Invisibility, Evard's Black Tentacles, Orb of Electricity (SC), Flame Whips (SC)
3rd - Melf's Unicorn Arrow x2 (PHB 2), Lightning Bolt, Regroup (PHB2), Dimension Step (SC) x2
2nd - Wraithstrike (SC) x3*, Rope Trick, Baleful Transposition (SC), Dimension Leap (Magic of Eberron)
1st - True Strike x1, Shield, Benign Transposition (SC) x3, Weapon Shift (SC)
*Yes, he's actually allowing Wraithstrike.
I'll also have a contingent dimension leap ready, which I can use if I say a special word.
So, this should be fun. I look forward to being able to swiftly cast wraithstrike, use my contingent dimension leap to appear amid a group of enemies, dump True Seeing into Arcane Strike, and Power Attack for 11 on a Whirlwind Attack. I'd get a +17 bonus to my attack, it'd be a touch attack, and would deal 2d6+6d4+36 damage.
I hope that's not too weak for a 14th level character.