Hmm nLite very useful, I am going to try my new shrunk OS soon. Also www.blackviper.com as mentioned before along with www.theeldergeek.com, www.tweakxp.com and www.tweakguides.com. There is an excellent pdf file...huge with massive amounts of information on setting up the OS right. Also go to the command prompt and type in 'diskperf -n' which turns off disk performance counters or something like that and is supposed to give a bit of a speed boost. I have my page file set to 512 mb initial and final sizes and I have a gig of fast memory. Also MS bootvis is a helpful tool to speed up reboots. CrapCleaner and system mechanic 5.5 are very useful to keep the registry trim and light. I run them both once a week. What one program misses the other gets. Also Diskeeper 9 the latest build is a very nice software. I have it defrag automatically when my machine is not being used. Mac OS X does something of the sort so manual defragging is never required. Also I defrag the MFT and stuff once a month....Diskkeeper defrags during the reboot. There is an option that the program also lets u know of to increase the MFT table on your hdd if you are using it a lot. I fully dont understand it but I have noticed quiet a lot of performance increase from my hard drive after I set it to the recommended setting. The software Diskeeper does it all for you. Very nice. And thats about it. My machine runs brilliantly fast, no crashes, no slowdowns and no malware, virus free for over 6 months!! And this too on a full XP install and not an nLite enhanced install. Hope this was useful.