Well, on the fairly cheap 
What kind of things should I look out for? Don't want to spend a massive amount at all, are there any bargains out there going second hand?
Current system is a Rotel RA-01 paired with Monitor Audio BR2s.
Cambridge Audio CD4s seem to go pretty cheap? They any good?
I just need it for playing cds and I don't need something uber quality, thanks.

What kind of things should I look out for? Don't want to spend a massive amount at all, are there any bargains out there going second hand?
Current system is a Rotel RA-01 paired with Monitor Audio BR2s.
Cambridge Audio CD4s seem to go pretty cheap? They any good?
I just need it for playing cds and I don't need something uber quality, thanks.