Wow! confusing!!!
The machine is going to be used solely as a gaming machine. I was going to upgrade to a 24" monitor but now not so sure. One of my mates as a 24" monitor and runs Crysis on it and it looks superb. He has a Nvidea 9800gt card but not sure what res he is running it at.
Im starting to think I may be better off buying a brand new dedicated games machine for around £1500 rather than paying out £700 in upgrades and just putting a 9800 card in this machine for the rest of the family to use as a general pc (son gaming, wife, internet & office).