I still have a Gateway from 2002, XP home, Pentium IV, 2.0 with 768mb RAM and a C drive that's 40gb. I added a 250gb second internal drive. Audigy 2 card. I never did make that big RAM upgrade. I added 512mb when memory cost a fortune.
BIAB 2009.5, Realband and PTPA 12 runs fine on it.
The box is as big a Fridge and weighs a ton. lol

I run everything now on a 2006 Gateway Core 2 Duo 2.13, 2 gb Ram, SB X-Fi audiocard and 2X500gb RAID drive system.
Also bought 2 Acer 22" widescreen Monitors. They're still working great after 3 years. They were $149.00 each.

Wayne,
(I still don't know what RAID does)