
I would get something today... I mean, there's always something to wait for if you go down that road. When Bulldozer shows up, then there'll be some near release of a new graphics chip, or motherboard chipset, or new SSD... Gotta draw a line somewhere and say, go.
Bulldozer is a matter of weeks away though, it will be worth the wait if you can wait. Ivy bridge isn't stopping people from buying Sandy bridge because that's months away yet.