Welcome to Linux and LQ forums!
Also gratulations with what looks like a very nice laptop. Basically with power like that you can run anything. Make sure you get the 64 bit version burnt to DVD of the distro you choose for your installation. For a newbie you should probably start with one of the big distros. Ubuntu, Fedora, OpenSuse to name 3. Also try the "Download Linux" link in the main menu here on LQ (on the right hand side of your screen). Its a list there of the latest and most popular.