Onkyo is considered by many to have some of the best sounding HTiB's for the money. The Onkyo 780 can be had for well under $400.00, but does not include a DVD player. I would recommend staying away from any HTiB that has a built in DVD player into the receiver. In fact, stay FAR FAR away. If your DVD player ever breaks, then you are kind of out of luck. Onkyo also sells refurbished equipment, if you are looking for even a better deal.
Some may also suggest picking out the individual components, but if you are looking for the easiest route to go, I'd stay with an Onkyo system and the DVD player of your choice!