I have a PCI-E 6600 GT OC, it's great for me. Runs games like Farcry and other graphics intensive games at the highest detail levels. About 4 months ago it cost me $200 Canadian, should run you about $160 American if you go for one.
Cashcif: I notice it's your first post, welcome to the forums!!
As for your question, first off I have no idea what kind of graphics card would be required for video creation software, but I don't think the 6200 will run the latest graphics intensive games at their highest levels. It will definitely run them, yes, but probably at medium detail levels smoothly. It all depends on whether or not you care about all the bells and whistles.

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