anybody using logic studio 8 or 9 on a 13 inch macbook pro.. Im curious to know what are the necessary upgrades to run logic studio with a ton of vsts without any hiccups. I already upgraded from a 160 gig of hard drive to a 250 gig hard and im thinking of upgrading that to a 500 gig hard drive.. and i currently have 3 gigs of ram on it now .. is it necessary to max out the memory ?