Just found this free program called GameBooster. I tried it out today and it freed up like 361mb of my ram for game usage. I suggest it to anyone expecially if they are running a little slower computer than state of the art. Here is what it does. . ."Game Booster is developed with the intention to help users solve PC games running slow. When activated, Game Booster will temporarily close other programs that are currently running, turn off background processes, shut down unnecessary Windows services, intensify processor performance, and do a quick RAM sweep. In other words, Game Booster will keep all the features of Windows ready for when users need them, but turn them off when they are ready to play." Game Booster does exactly what it claims to do. It clears up RAM and it helps your games run just a bit faster.
Here is the link to download it if you wanna give it a try.
http://www.techspot.com/downloads/4842-game-booster.html

I will give it a try