Use StartupCop
Reviving a dead thread here, but whatever.
I use a program called Startup Cop (try
www.download.com) which lets me set multiple profiles for my Win2K PC. it controls what starts at boot-up time.
I considered dual boot, but I do so much multitasking, I like to have all my programs just where I like them. If you know a thing or two about Windows, you can leave all yer stuff right where it is.
I'm a real do-it-yourselfer, and I do checkups on my system every couple of weeks to see what kind of crap I may have accidentally installed.
In Win2K, check the control panel...admin tools...services, and look up everything on the web. Shut off the stuff you don't need.
Learn where the Run registry key is in the windows registry, and look up everything you see in there, and remove the stuff (like spyware and the like) that you really don't need. I believe it's under HKEY_LOCAL_MACHINE...Software...Microsoft...Windows...Current Version...Run or very similar.
Get some spyware catching program, like Ad-Aware (download.com again) and run it every so often if you like to install shareware and the like.
I've also used Registry Cleaner to good effect to clean out unnecessary registry keys that refer to files that are no longer on my computer. These can and will slow you down, mostly at boot time.
Don't install a ton of fonts.
Use the TweakUI control panel and turn off all that stupid animation in menus and windows and tooltips and the like.
Turn off all system sounds, if one of them chimes when you're working, it can hose you.
Finally, clear out your Startup folder under your Start...Programs menu.
If you do all this, and use a separate disk for OS vs audio, and defrag each night when you go to bed, you should be styling.
-ElSilva