Perhaps a good resource for you would be
www.resellerratings.com
They have ratings on pretty much every online store in existence as well as products. The ratings come from the people who use the stores, and they are very dependable. For example, Newegg has a lifetime rating of 9.7 out of 10 with over 7300 votes, so it's a good indication that it's a good store. They also rate in six month increments, so you can see if a place is going downhill. I've used bith Resellerratings and Newegg extensively and like them both.
Anyway, check it out and see what you think...