I worked all night and got my old PC running again (it's faster than my current one.) However, the hard drive failed (640 GB.) So now I'm stuck with 40 GB one.
>install windows xp
>okay
>install tf2
>okay
>check free space
>5 GB left
It just gets better and better, oh well. At least I got my old rig back.
Edit: I need a good hard drive around the $50 mark.