Lessee - I gave an old friend of mine an older "custom built" pc from some extra parts I had lying around the office unused ... p4 2.66mhz, 533 fsb, 1gb RAM, 80 gb hard drive, 256mb AGPx8 6200 Nvidia, etc., etc.
[His old machine was an eMachine with a amd k62 450mhz processor and equivelent hardware - it was giving him fits.
And aside from the various tools (like open office, the gimp, etc.) I loaded it with an extra copy of NWN 1 I had and put a lot of home made modules from the folks at the nwvault onn as well. So I guess that counts.