Happy customers = returning customers + with free advertising to boot. Win-win situation. Giving a little in favor of the customer can pay off. I believe Sears pioneered that idea.
Photo.net is an awesome resource. Its a community for tutorials/tips, reviews, galleries, classifieds etc. Theres even a section for online retailer reviews.
http://photo.net/neighbor/subcategory-index?id=2
Personally, I try to buy at a "brick-and-mortar" store when it comes to expensive equipment. That way, I have somebody to talk to for questions before and after buying as well as being able to contact a human in case something is wrong. It also helps the local business (who may in turn help <i>you</i> if they like you
) Its comforting to know that if something is amiss, you can just walk in and go "hey, can you tell me if this is normal?" and hand your camera to them to give you a professional opinion.
My personal favorite local shop (in the LA/SFV area) is Hooper camera. Of the 3 shops I've visited, theyve always been very helpful and friendly and their prices are fair. (see, theres that free advertizing thing I mentioned above!)
Hope this helps. Just take your time making your decisions. This is an investment you will be glad you made, but if you start it with bad experiences you may carry some resentment with the camera and you wont enjoy it nearly as much.