Well first what could you give a little more information about what you want this computer to be able to do or what your planning on using it for. Do you wanna be able to overclock, play games like BF2, HL2, Doom3, or are you just looking to get a decent machine to do regular stuff. Since you are on a budget it'll give people an idea of where to add money to get the best for what you wanna do an what areas they don't have to be as critical in.
P4 3.2 GHz Althon 3200+
Asus Mobo Gigabyte Mobo
1 Gig Ram 1 Gig Ram
Ati 9800 Pro Gigabyte 6600GT
250 Gig Maxtor HD 160 Gig WD HD