Here's my head unit, it's a Kenwood KDC-W7544U with a 120GB iPod Classic.
I'm very impressed with it. Full iPod control, customisable display, multi-coloured backlight that can do colour cycling but I stick with good old red to match the interior
My only slight complaint is that the screen can be hard to read sometimes in bright daylight with it being so reflective, other than that it's a cracking head unit.