I have a MBP with 4 gigs of RAM and I'm curious how well Logic Studio will run on it? I'm just getting into recording and I wanna get away from Garageband. I've heard that Logic's interface is easy to use and has a very minimal learning curve. Will it run smooth with no latency? Also what would be a good external HDD to use with it? Since it takes up 70+ gigs of HDD space hah.