Wizard/Swashbuckler/Swiftblade/Eldritch Knight feat suggestion

Hi all,

I'm working on a Moon Elf Wizard/Swashbuckler/Swiftblade/Eldritch Knight build. My progression is like this: 3 Swashbuckler, 5 Wizard, 10 Swiftblade, 10 Eldritch Knight. I might pull an EK level earlier to use that sweet armor that Deekin sells. My original stats were: STR 12, DEX 18, CON 12, INT 16, WIS 8, CHA 10. I'm currently character level 9. Both ability points have gone to INT. My plan is to put the rest there too.

The feats I've taken so far are: Able Learner (the build has lots of skill points), Dodge, Mobility, and Practiced Spellcaster: Wizard. I've gotten Weapon Finesse from Swashbuckler, Extend Spell as my Wizard bonus feat, and Spring Attack from Swiftblade. That leaves me with three feats left. One of them with be Persistent Spell (persistent Haste FTW!).

With the other two I'm torn between two Two-Weapon Fighting feats or Combat Expertise and Whirlwind Attack. Obviously TWF would give me more attacks (I'm using the dagger that gives TWF for free right now). Whirlwind seems like it could be fun and would give more attacks when there are more enemies. The big thing is that later I could get Combat Insight in epic levels and get even more benefit from my Int score.

Thoughts?

Another Swiftblade question: do residual and perpetual celerity stack? Are either affected by extend spell or is the spell duration doubled and then the celerities tacked on from there?