I am getting a bit confsed about the Sony DAV systems. A lot of UK shops only stock the DAVS550 and DAVS880 as the latest models. However some on line suppliers (e.g. Dabs) stock the above and the DAVC770 and DAVC990. Can anyone tell me if all 4 models are UK models? As far as I can see the C770 is like the S550 but with more power, progressive scan and a 5 disk changer. This would best suit my needs but I want to be sure the C770 is a UK model. Can anyone help?