Oh yea, I would never recommend Vista for some with less than dual core, and 1GB RAM, and some serious video power. Once you start to loose the fancy pretty features, it'* just not that good anymore :P
Luckily I have a dual core (4400+ equialent) CPU, 1GBRAM, SATA 100GB, and high end Intel graphics in my laptop, so it makes it extra fun. I can do all the CPU intensive windows task I can imagine at the same time and CPU usage never exceeds 25%. Ex: crazy task switcher, which playing a video that'* being displayed IN the crazy animations, and with tons of apps open, etc.
1999 Mustang GT - 5 Speed - Modded to hell
2004 Infiniti G35 - Loaded - 6 Speed
1998 SSEi - Black & Chrome - Dual 10" Infinity
1997 SSEi - White & Chrome - Rear ended, and written off.
1995 SE - Green & Gold - Given away, :(