Hi jack,
Judging from the specs the parts are pretty old. The cpu comes out of the Northwood time back in 2002, and the RAM is not very fast.
I don't think those parts can handle today's applications but i would suggest to save the hard drive and the wifi card, those are the most usable parts. Don't expect the harddrive to be very fast, but you can always use it as a second harddrive in a pc. (not as main OS drive)