Companies similar to Dell and Alienware?

Yahoo News has an interesting article on the downfall of Dell.  In a way, their faulty craptacular parts affected me last year, when my video card decided to blow its own brains out.  It has me thinking, though - what companies, if any, offer similar custom PC's you can adjust and buy as a whole?  Or is this a dying trend?  If so, I'm not enthused.  I hate trying to put together parts in PC's due to my vision problems, and I sure as hell don't want to buy some cheap piece of shit from Sam's Club.  It's nice to have a company where you can pick your parts and go with it. 
 
Any ideas?