Thanks for the replies. Sorry to hear about the issues with the one you bought Leebo310, but you've helped me make my mind up. I think I'll give the koolertron a miss. Too good to be true.
JoeDarKa, you mentioned that your non DAB rcd510 shows the radio station name and artist/song playing. I was under the impression that only the DAB ones had RDS. All the ones I have found on ebay without DAB also lack RDS. Maybe I just haven't come across one.
Does anyone know if the newer RCD510s have better sound quality than the older ones? Do they have an updated amp? I've found a few but there from 2009.