I know that for the most optimal gaming it's best to build a desktop from scratch, but right now I have some pretty good laptops available to me, and seeing how laptops are fairly difficult to upgrade, I am really interested in how well an external graphics card would fair while playing some top games.
So what are some good external video cards (if any). I would like to run Starcraft 2 pretty well, and possibly some shooters. But I also want to keep it pretty affordable.
Also, what kind of processor would I need to run these kinds of games with an external card? I have laptops ranging from as bad as dual core c-50 AMDs to as good as a top i7.