but there is a trick, you MAY still mine and play all your favourites games in case if you have more then ONE videocard
then it is easy, on one VGA card you will continue to mine, while playing on another. no problems
also, there is another option - choose a game which is running great on integrated VGA - like Quake 3 Arena or CS 1.6
and there is one more option! )) you have to build separate mining farming machine and mine there. while you'll be playing on you prime PC. ( oh, come on, who I'm trying to fool - you'll be mining on that PC as well)