No, I don't plan to get Vista or a multicore system anytime soon. I'm like you, I'll probably get that when I build my next system. Which will be next year at the earliest. Probably the year after that.
Exactly the same here. I'm never using newer systems, as long as the old ones run fine. My XP is running like a charm, and I will not buy a new PC the next 2 years, unless something happens to my hardware.

You should make a poll, easier to see how many people will switch to the new OS.