The Mac games I have all have to install an application and run the media off the DVD. Open the DVD icon and look for an installer. The DVD player will do nothing for a game.
Nice setup. If you haven't already, get a big, fast external firewire drive and put as much ram as you can in the MacBook Pro. Although I use Logic myself, Pro Tools is a great program and popular for good reason.:)
The Live 6 manual is the one you will need. It looks to me like your concerned with free VST's. Look on http://www.kvraudio.com/. It will answer the free-ware questions. As to the other plugins- there own companies websites will tell you if they will run or not. Most of the better plugin and VI...