you wont know until you get the case but until i can actually confirm the motherboard and specs i wont be able to get direct no finicky bits to add to replace or add to the motherboard hassle free

Duncan i can't find the full specs any where for the computer i found the 570 and 560 lol

is this it?

http://www.dell.com/uk/p/inspiron-570/pd...mp;isredir=true

If it is there is an optional choice between between a integrated ATI Radeon HD4200 card or....

NVIDIA® GeForce G405 512MB Graphics Card

bare in mind the inegrated card is a pile a s**t but the motherboard can support some decent, but not amazing cards.

But the power supply is a pain though, but you can pick up a 400W powersuply for next to nothing.

http://www.ebuyer.com/120674-sumvision-450w-20-4pin-sata-power-supply-psu-retail-boxed-sumvision450

http://www.ebuyer.com/222076-his-hd-4670-iceq-edition-1gb-ddr3-native-hdmi-dvi-vga-out-h467qs1gha

Both those will fit your computer and just under budget, that card will be more then enough