To my knowledge there is not a product as you describe. The best thing I can think of is the Pioneer range of AV Amps - they are supplied with a USB cable to connect to an iPod and give you direct access and control.
Onkyo, by a remarkable coincidence, do a similarly numbered receiver/dock arrangment, the CBX-300. Play have it for a penny off £200. No idea about reviews however. Yamaha also have their -430 model in addition to the 330 one you've mentioned.