Windows 2000 Pro
133 MHz or higher Pentium-compatible CPU.
Memory At least 64 megabytes (MB) of RAM; more memory generally improves responsiveness.
Hard Disk 2 GB with 650 MB free space.
Add SP4
340 MB in megabytes (MB)
Windows XP Pro
128 megabytes (MB) of RAM or higher recommended (64 MB minimum supported; may limit performance and some features)
1.5 gigabytes (GB) of available hard disk space*
Add SP2
64 megabytes (MB) of RAM
1.8 GB of available hard disk space during installation
Now, I will tell you this cause we have access to both in this house, 2000 is stable but the graphics are not that great. It was NOT designed for a graphics environment. 98 and XP were. Also, when I was running a dual boot system, I could not run my resolution higher than 1024x768 even tho my monitor and graphics card both supported 1280x1024 (not that I go that high but I do use 1152x864). We never figured out why it wouldn't allow us to go higher but it wouldn't.
Also, something 2000 does that always drives me nuts, it does drag and drop really screwy when you put folders into new places. Say you want to copy a set of folders into My Documents? It scatters them all over creation! XP puts them nicely in order even if they aren't alphabetical right at first. And by scattered, I mean really scattered even to the point of being on top of one another.
It's just not as intuitive as XP.
My opinion, find a way to add another stick of memory. Liz