I've had luck with comparative shopping websites. You've probably heard of http://www.mysimon.com. There's plenty other sites like that out there as well. Run a search for them. Just remember to keep a fine eye out for those that are legit and those that aren't.
Comparative shopping is where you enter what model/brand you want and the website will search a database of dealers and then give you a list of prices. All without you having to visit each individual website.