Re: difference between V-Sync and frames per second. If you turn V-Sync off you will get the maximum frames per second your graphics card can manage, but when using a standard LCD monitor you'll have tearing all over the place as their refresh is usual fixed at 60Hz. When V-Sync is off the video card ignores synchronising with the monitor and just pumps out as many frame as it can handle.
So Oldschool is right in terms buying an AMD over an Intel especially if you have a standard LCD, but if you've want to have the best CPU / Video Card / Memory combination, you better make sure the rest of your hardware can match / cater for the performance, otherwise your wasting your money.
To see your games at frame rates higher than 60Hz you'll need a 100Hz+ monitor to get the benefit.
some thing like this ...
http://www.pccasegear.com/index.php?...ducts_id=15266