Thanks for all the input, gentlemen. Yes... I am worried about the video card too.
Thanks for the link to Can you run it?, SteamWake - I had seen that site in the forums but then could not locate it again later. I posted the results of both the minimum and recommended tests. Anyone else find it curious that my video card rated higher on the recommended side than it did on the minimum side? Wierd.
Oh don't fret for a minute, gentlemen... I learned my lesson long ago about trying to add a new video card (or any other major component) to an existing platform. Sure it can be done - but it is often much more than you bargained for. My next one will be a homebuilt like my last... got 4 great years out of the ol' girl. Need to get off my butt and start ordering the pieces and parts for the new one very soon.
One other question: Does the game have a no-CD option available? Is the DVD drive required for anything other than installation?
Now if I can just get the Post Office to cooperate...