Dohbot mate, that is an onboard graphics card, something it says may or may not be supported by the game.
With 32mb of ram it really is barely enough, but the rest of your Pc is easily good enough with a half decent graphics card in there. If your looking to save money something like the ATI Radeon 9600 would do you a while still, and cost under 40 quid. If you want to spend a bit more, just under a 100 quid something like a Geforce 6000+ series, or a Radeon 9800 would go down well.
Do not get any Geforce cards from the 5000 range, go for a Radeon if your looking for cheap, but if around the 6000 series, the Geforces are pretty good.