Need help deciding between a couple PCs

[Nemo]

Basically getting a new PC and cant decide which to get (mainly because im not too informed on graphics cards). Want the computer for general use as well as gaming. So wanna be able to play stuff like Starcraft 2 on High graphics, Witcher 2, and just general new games. This piece of crap i've got now isn't nearly good enough sadly :P

So i've somewhat limited it down to
http://configure.euro.dell.com/dellstore/config.aspx?oc=d00sx702&c=uk&l=en&s=dhs&cs=ukdhs1&kc=studio-xps-7100
(just the stuff that comes with it, not any of the upgrades)
http://www.pcworld.co.uk/gbuk/medion-erazor-x70-08764454-pdt.html
http://www.pcworld.co.uk/gbuk/acer-predator-g5900-1-refurbished-desktop-pc-08623500-pdt.html

The thing i wasnt sure about the graphics cards is that i havent heard great things about ATI graphics cards, and would the £580 one really be worth the extra £80?

Obviously if you have any other/better suggestions then feel free to suggest away :D

[Firehorse]

Out of those three i'd say none of them seem ideal. Go for the medion specwise imo. But if you want better build quality and support go with the dell.

[Nemo]

Out of those three i'd say none of them seem ideal. Go for the medion specwise imo. But if you want better build quality and support go with the dell.
What would you suggest in that price range? thanks though, +rep.

[Firehorse]

What would you suggest in that price range? thanks though, +rep.

your best bet is to put together a custom dell.
These aren't very customisable specwise but they'd work: http://www.dell.com/uk/p/inspiron-620/pd?oc=d006213&model_id=inspiron-620
http://www.dell.com/uk/p/inspiron-620/pd?oc=d006213&model_id=inspiron-620

[Chippiewill]

I agree, the best solution would be the Dell probably. Just be careful not to go with one of their "premium" PCs because you'll pay a premium price for a standard PC. Also if you're looking for a new keyboard check this baby out http://store.razerzone.com/store/razerusa/en_US/pd/productID.199817100. Yeah, that's right, changes colour according to your APM (h)