I would recommend getting an air HSF which have improved drastically since the days of v12 style heatsinks. I can find a good Wcing kit but you need 4 mounts for socket 462 otherwise you can only use the swiftech 5002 and Air HSF have good performance, are cheaper, and are quiet.
http://www.svc.com/soca4cool.html
Thermalright SI-97A
Scythe SCKTN-1000 Katana
Zalman CNPS7000B-Cu
Cooler Master RR-UNH-P0U1 Hyper 6+
Scythe KATANA Cu