heres a few programs that will help improve your windows experience...
these 2 will help you get rid of the buffer underruns
this will make a big diffrence, has alot of options, you can uninstall IE from your system...ect
this is a start menu enhancement
tweaks hidden system settings menu speed ect....
a customizeable menu bar.... it rox
these are cpu coolers\overclocking apps
a file wiping utility
i really like 98lite cause it makes all of the recource hogs in winders removeable, if you run vmware this app is a extreme must to have...