I've bought the following desk and plan to put the PC box i'm buying in the cupboard to the right in the following pic;
Do you think it will overheat or not really cause to much of a problem?
I may leave the back panel off the desk....
Considering either a Shuttle or standard case prebuilt from o/c with a 4890 GFX card:-
http://www.overclockers.co.uk/showproduct.php?prodid=FS-094-OE&groupid=43&catid=1446&subcat=
or
http://www.overclockers.co.uk/showproduct.php?prodid=FS-030-OE&groupid=43&catid=1444&subcat=
(with the Coolermaser Elite 335)

Do you think it will overheat or not really cause to much of a problem?
I may leave the back panel off the desk....
Considering either a Shuttle or standard case prebuilt from o/c with a 4890 GFX card:-
http://www.overclockers.co.uk/showproduct.php?prodid=FS-094-OE&groupid=43&catid=1446&subcat=
or
http://www.overclockers.co.uk/showproduct.php?prodid=FS-030-OE&groupid=43&catid=1444&subcat=
(with the Coolermaser Elite 335)