not a bad little build, similar to mine(ish) but check out this monitor
http://www.overclockers.co.uk/showproduct.php?prodid=MO-091-LG&groupid=17&catid=1425&subcat=
TINY bit smaller than the one you got listed, but an absolute steal at that price
as far as ram goes, yeah most games will only use 4gigs, but hey, its so cheap theres no reason NOT to go for 8gigs, thats what im doing

- this is the ram im getting -
http://www.overclockers.co.uk/showproduct.php?prodid=MY-094-KS
same speed for less money and ive heard nothing but good things as far as reliability goes. Good luck with your build