I have RocketDock and ObjectDock open (+ other progs), but not Elegant Clock and I have never had any problems with the mouse or 100% CPU (or anything like it) when opening or closing windows.
But there is a big difference in system specs. - I have a Core2Duo with 2GB memory and a relatively new (though inexpensive) graphics card with 512MB memory of its own. TBH, I don't think I'd like to try to run WinXP Pro in the RAM levels you quote at all.
I am using WinXP SP2 with 512RAM.
Intel Pentium 4 2.53GHz
128MB RAM
But there is a big difference in system specs. - I have a Core2Duo with 2GB memory and a relatively new (though inexpensive) graphics card with 512MB memory of its own. TBH, I don't think I'd like to try to run WinXP Pro in the RAM levels you quote at all.






... For functionality... And beauty 

