So...I'm getting a new laptop with Windows 7, 4GB, 320GB hard drive and an Intel Graphics Media Accelerator 4500M (Video memory up to 1309MB). Is this going to work? or will I have to purchase and install an additional graphics card? BTW - I don't build, am not a "gamer" and really use SL just to hang out and talk with friends (and my bf). I have read the system requirements (not updated to include Windows 7) and the Wiki...so...I'm at a loss. Thanks for the assistance!