Nope, the CSM series are poor value for their relatively meh quality and not so great voltage regulation.
The new CXM series are better value if you're looking for a new power supply. (Black label version, not green)
The CXM 550w is currently 49 bucks at newegg after a rebate and is a steal: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139147&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=