I echo the recommendation of Blaupunkt DAB radio - I've had two, and both have been excellent.
On the subject of antennae, Blaupunkt now offer a combined FM/DAB unit, but it does mean a hole in the roof. On a previous car I used a Panorama/Blaupunkt glass mounted external antenna, which gave good results, but the rear wiper sweep on the Coupe means one of these would have to be mounted to one side, which would look odd, and there could be interference from the FM antenna.
I now have an internal glass mount antenna, and it works perfectly. At least it did, until my windscreen cracked and had to be replaced. The antenna is supposed to be removeable with care, but AutoWindscreens just pulled it off, breaking the elements, and stuck it back on, hoping I wouldn't notice. They are now paying for a new one to be supplied and fitted....