The RP550V2-S-SL or the Xclio 500 Goodpower. Still more bang for your buck from an RP550 though...35A of stable power on the 12's for 60 bucks. It's just hard to beat
However i must admit though as the gap between the quality budget PSU's and powerful long warrantied Corsairs and others lessen it's a tough choice. I was able to get a 520HX for 89.99 free shipping lmao I couldnt pass it up to go with my new Antec 900 as it was modular and almost impossible to manage a 900 with a PSU with as many cords as my RP550V2-S-SL. This version of the RP550 is a more updated version of the original seller and has more cables. I still own this source.