Hello everyone I have been testing and distro hopping for ever and I really would like to settle down on one. To start here is a list of the hardware in my pc which is 7 years old. I love linux and the applications available for it, but I have some old games I want to play and I need to run a version of autocad with survcadd. This rules out linux for me. I have used windows xp with sp2 slipstreamed and w2k with sp4 slipstreamed. Both will run my applications, but I want maximum performance from my older hardware expecially since I will be using it for some gaming(emulation, NFS series, and other open source games), Cadwork(autocad 2006 seems to run well with survcadd 2006 and toolpac), other everyday stuff like ripping and encoding dvd's, editing pics etc. P3-733 384MB RAM 80 GB 7200RPM 2GB cache drive NV GF4 MX 440 DVD+-RW CD-RW I love linux and the applications available for it, but I have some old games I want to play and I need to run a version of autocad with survcadd. This rules out linux for me. I have used windows xp with sp2 slipstreamed and w2k with sp4 slipstreamed. Both will run my applications, but I want maximum performance from my older hardware expecially since I will be using it for some gaming(emulation, NFS series, and other open source games), Cadwork(autocad 2006 seems to run well with survcadd 2006 and toolpac), other everyday stuff like ripping and encoding dvd's, editing pics etc. I have googled and read forums, benchmarks, tests, and tweaks until I am sick. Right now I am running windows xp sp2. with bbclean for a shell, and windows classic theme. I want my puter to look good too. I have used the revolutions pack for 2k with success for 32bit icon support. Programs I usually keep running in the background include: Privoxy, samurize, kerio personal firewall 2.1.5, volumouse, and jtk(joy to key). What do you guys suggest for my os? 2ksp4 or xp sp2? I want the best performance, but I also want my os and apps to look good. I can't understand why programs seem to use more memory in xp than in 2k. For examply bbclean(blackbox) uses around 18mb in xp. I am certain task manager wont show nearly as much for that app in 2k. I understand that xp manages memory differently and I have heard that unused ram is wasted ram. I am thinking that xp probably allocates more for performance until something else needs it Any suggestions on anything will be much appreciated. griz