Ok im looking to get a dvd cinema system for home. what do i need to look out for?

TBH im trying to kill a few birds with one stone as i want this system to give me good sound Quality for music CD's and also good quality DVD.

also i like these ones with the usb port and radio

these 2 are some i looked at yesterday:
http://www.comet.co.uk/cometbrowse/p....do?sku=393584

http://www.comet.co.uk/cometbrowse/p....do?sku=406830

now the Panasonic sounded spot on and the Pioneer didnt seem as good which i was surprised at. This may have been that it wasnt set up properly.

So what have you guys got and what do i need to be looking for?

Thanks in advance