Favorite Part Vendors?

[octopustoe]

What ebay or amazon vendors are your favorite for parts (ie digitizers, flex cables, battery doors, etc)?

I'm looking to get a bunch of parts but don't want to get stuck with someone with low quality control.

 

[TechSpec87]

I've heard from most that eBay is best for bulk and amazon for individual items or small orders. Also know a guy that uses alibaba as well and has receive good quality