...is Beyond PC Ltd. in Exton, PA. They were formerly known as Beyond PC Corp or BPCC and recently moved a hundred feet to a new storefront near the FastSigns by the Exton Square Mall. I usually see them at the MarketPro Computer Shows in Allentown, where they consistently have good computer show prices for non-name-brand (aka white box) computers and parts.
For some things, they can even do better than the big internet stores like NewEgg. For example, I just bought a case and power supply for much less than NewEgg would charge for the combination.
So the next time you're in the market for a cheap computer, consider the little guy.