I second the HP DY651A. It was apparently unavailable for a while: all the online stores I looked for it in were listing it as out of stock or unavailable for the last few months of 2014, and it was something like $50 on eBay and the like. However, recently it became available again. I ordered mine three weeks ago and got it a few days later, for under $20 Canadian. Multiple online stores (newegg, NCIX, etc) are listing it for under $20, some as low as $12.