Hi people.I`m thinking of changing my cd30hu at the end of the year.Was looking at a couple from halfords the ones that have the 7"screens on them.So was looking for some buying tips from guys on here that have changed and what the best unit to buy woukd be..Or would i be better to just get a CD30mp3 can get a refurbished one from ebay for around £140-150 delivered....