Hey, I've been ordering tons from these guys over the last 6 months w/no problems whatsoever. Well, I did have a little problem (search function for my thread) with a power supply, but the owner of the company called me personally at home and made everything right, now that's customer service!
They are somehow affiliated (don't know how, sister company?) with
Abilitywholesale.com, but don't know much more than that? My main vendor I order from is Newegg, but I still do tons of business with WBPCS - they also have extremely competetive prices on components, ect. and best of all, their shipping is probably less than half of what Newegg charges. Seriously, throw together a system or a bunch of parts that both companies carry and see how much cheaper WBPCS shipping is.
I have to highly recommend them because I've had absolutely no issues with them, the one problem I did have...they solved in a great way.
-VTrider