Looking for a one box solution, the Arcam Solo might do the trick.
Cost £1000 plus speakers and speaker cable. The buttons aren't brilliant for the money, but I've briefly listened and liked the sound it produced.
A number of mags have been positive about it, but not necessarily about the accompanying speakers costing a few hundred more.
Is that the sort of thing you were looking for?
If it hasn't got MP3 player connectivity, you could also buy the Apple Airport express for about £90 to play stuff from your hard drive on your system!