Favorite 8th level build? (1/2 of gestalt)

[bean illus]

Only as an exercise: What 8 levels would you say compliment a Facto3/Cham9?

Plan for max Int, and dump Cha. Something like 12, 14, 14 - 18, 8, 8 (pick up Wis somehow later).

Sources: All 3.5 !st party.
Goals: Not that many. Reinforce/boost/synergize Int? Size/reach? Consider AoO. Save 2 feats for FoI. Please keep it kinda simple (just a few classes)?

PS: It's not really a gestalt build, but 20 levels. Facto3/Cham9 seems quite capable (yes i know; prereq), and i was wondering what more to add. More Cham is ok if needed, but for the purpose of this exercise i want to stick to Facto3 (i might consider Facto5 after hearing ideas).
I am really thinking something besides Facto8/Cham10.

So let's have 6-8 levels of straight power. Be creative. Thx. ??

[Khedrac]

if it is to go on top of (or around) a chameleon 9 build I would go swordsage or warblade. Remember that when working out which manoeuvers you can take you use effective initiator level not class level, so a other 12/initiator 1 counts as an initiator 7 and can take 4th level manoeuvers they qualify for. Manoeuvers are also something that neither factotum nor chameleon give yon on their own.