consider it fried

So while working on some freelance web stuff for The Features, my computer shut off.. sparks flew out the power supply, and smoke started rising. I think it goes without saying that my home PC is rather fried.. I hope that it's only the power supply but you never know.. maybe it's the processors. So, what is the publics opinion on buying computers from retails chains like Best Buy or CompUSA? Is it a decent deal? How about Dell or Gateway? I'm assuming that anything outside of making your own isn't going to be a great deal, but there's gotta be something decent out there.. I need a PC damnit!