Yes, the unlocked multi will be awesome on that chip, but the price too
Well, i think that i'll be happy with a 3.5 GHz oc +-. SSE4, bigger cache & faster SSE instructions should help too.
About the memory, i think that i'll get those ocz reaper 800mhz cas3, cause, faster memory with cas4 costs 2x times more. Also i've read about some issues with 4GB on X38 mobos (seems like they need higher timings with early bios versions).
I know that it's still early, but usually prices raise here around xmas, and i want to buy some parts this month, like the ram. And i must prepare my budget.