Chevron
Serial breaker of phones
Just get a cheap case that comes with a PSU? Also if you shop around you can get some better prices... If you want cheap, try to get an iSonic Chassis... They are made in South Africa and come with PSU's...
http://www.isonic.co.za/cases_400W.htm
I know landmark stocks them, bought my iSonic PSU from there...
But then it has an isonic psu...