I'm still waging an all out war with Vista and its silly bloatware (virus software, firewalls, crap like that). Honestly I think the OS is awesome, but I dont like having more then 3 or 4 icons in my taskbar at a time- even if I have a screaming CPU and loads of RAM.
I'm getting a couple of 2gb ramsticks, and a 7200RPM hard disc for it... Probably not for a few months (and once I start college I'll probably spend my money on something else... like beer)