follow the advice here:
http://www.redflagdeals.com/forums/s...d.php?t=685084
Finding old 2700 or 3200 ram, especially 2GB for $50 is somewhat difficult and unrealistic. New ram is cheap. Old ram is expensive. To figure out what PSU you need just read the label on your old one.
That $250 can get you a respectable and fast modern machine if you know what you are doing