Fiero Store - As others have said here, their packaging leaves a lot to be desired. I spent around $800 on parts to be shipped to the UK, and they turned up in a long box, mostly loose. There were a couple of parts in there I hadn't ordered, but wasn't charged for. I think everything I had ordered was though. The great bit was that they managed to halve the shipping price the website came up with, AND they underquoted the value of the parts to cost price or lower for the documentation reducing the amount of duty I had to pay by a good amount. Service was pretty good, although they can be a little bit slow to answer emails. Telephone service was pretty much first rate.
Rodney Dickman - The old saying that you 'get what you pay for' is true here. Rodney's stuff ISN'T cheap, BUT I doubt I would ever be disappointed by anything bought from him. His zero lash drop links and aluminium cradle bushings are absolutely first rate (even if I did mess up installing one of the drop links a bit, my own fault!)
Rock Auto - What can I say - wow. I've been really impressed with Rock's prices, particularly on shipping. I can pay import duty and VAT at the point of sale, and I've ordered on a Friday evening and had a delivery on Monday morning before - to the UK!! All the parts I've ordered have been pretty much OK I think, never had any issues with anything.