Well go and look for a 5200... wait wait... my friend is selling their 9600. He'll message you on aim about it. 60 dollars for a 9600. He can be trusted, trust me. Go on AIM.
Uhhhhm..... it'll PROBABLY still work but... hey can you check if there's that 4 pin thing from the PSU to the motherboard? The square thingy. Because I have an extra 250W PSU and maybe you can use that one.