Insane amount of system resources? :\ I think people forget sometimes that Vista isn't for old computers. It's for new ones. If you have the hardware to run Vista, it runs fine. I mean try installing XP on a machine built for 98SE; obviously its going to suck.
Honestly, I've been running Vista for about half-a-year now and the only issues I had were with copying files over a network. Those issues were resolved completely with SP1.
The only other problems I've had stem more from the fact that I'm running a 64-bit OS instead of a 32-bit OS, and that can't really be blamed on MS, but 3rd party software developers who won't get with the times.