MingWolf wrote...
Silver Sparkle, I could be wrong but I think the gaming index is not out of five hehe. Anyway, the 3450 is definitely on the fluffy end of the low when comparing numbers to the minimum cards (at least when looking at some numbers on a chart). With that said, however, I have seen some low-end Radeons do some pretty impressive things on modest resolutions with some high-end games, and the 3450 is one of them. Type in your card on youtube and watch it play out on games like bioshock, crysis, etc. It turns out not too bad 
my bad .... its not out of 5.0
But a base score of 4.1 is very good on vista. just checked the meaning of 4.1 and it says your gaming experience will be very good and you will be able to play all the latest titles.
Essentially gaming index between 4.0 to 5.0 guarantees good gaming experience. Vista also mentions that for Graphics performance their highest score has been 5.0

So as some of you have mentioned I think I'm all set for this game. Thanks folks.