Replacement head unit for my old Saab

Some scrote decided that my crappy old Sony head unit was worth pinching, so I'm looking for a relatively simple replacement, and I'd be grateful for advice.

The last unit had a rather handy little feature - instead of a CD drive, it could store an iPod inside the head unit, so no need for trailing aux/power leads. Very handy. Is there a current or recent model which offers this functionality and doesn't cost the earth?

I quite fancy a DAB radio as well, but this isn't a show stopper.

In Saab's infinite wisdom, they fitted a 1¾ DIN space, so I'm definitely in need of a single DIN unit.

Thanks in advance.