With 2-3 months left before Bulldozer arrives and with such a powerful system already... do wait or invest in stuff that'll work with any platform.
- A really good and/or big SSD
- Periphery? A mechanical keyboard, or some great mouse, or good cans?
- Or as Hat said - a better sound card?
I really wouldn't be switching platforms just yet. Yeah, I know that itch is an itch, but scratch