I would get that AVR-2310.
You can connect any iPod to most receivers by using their front A/V inputs, but there is almost NO installation of a receiver which has the receiver on top of a rack/shelf to accomodate top-insertion of an iPod. So, manufacturers don't make them. You can get an external iPod dock for the Denon, then put it where you can actually get your iPod into the dock - next to the recevier, or on top of your equipment rack. With the dock, which will fully support iPod functions on screen, it's under $800.