I am currently running windows xp pro. I am sick of it eating up all the ram.
Then I'd suggest you give some thought to tweaking the OS so that it is lean and mean. You can, with a little effort, get WinXP running just as fast and smooth as Win2K, and have it use nearly the same amount of memory at startup.
Here's a typical <A HREF="http://www.computersgcs.co.uk/tweaks.htm" target="_new">website</A> with WinXP tweaks, and here is a <A HREF="http://www.kellys-korner-xp.com/" target="_new">another</A> that I find useful on a regular basis.
Turning off unnecessary <A HREF="http://www.blackviper.com/WinXP/servicecfg.htm" target="_new">services</A> will also make a large difference in performance and the amount of memory consumed ... and BTW, this also applies to Win2K.
If you do decide to downgrade to Win2K, you'll need to disable Hyperthreading in the BIOS before installing the new OS. You'll also need to do some research to discover if all your current applications will run in the older operating system environment, and the same goes for drivers, especially for third-party components. You probably won't discover many conflicts of this nature, considering the core similarities between the two operating systems, but it is better to be safe than sorry.
Toey
<A HREF="http://forums.btvillarin.com/index.php?act=ST&f=41&t=328&s=91c282f2e5207e99b7a652ee13b3512a" target="_new"><font color=green>My System Rigs</font color=green></A>
___________________________________________
<A HREF="http://forums.btvillarin.com/" target="_new"><b><font color=purple>BTVILLARIN.com</font color=purple></b></A> - <i><font color=orange>Your Computer Questions Answered</font color=orange></i>