Help choosing new case, psu and heatsink

Thanks all! I will have a look at ebuyer and at the scythe and see how it all looks!

For the heatsink have a look at the Xigmatec S1283 - I've got one and it is rather good. Keeps my Q6600 @ 3.1ghz nice and cool without much noise at all.

Oh, and if you decide to get shot of the media centre chassis - stick it in the Classifieds section, I may be interested (considering a HTPC build). :)

Thanks. I will research tomorrow! Don't worry the chassis will end up for sale!