I have a MBP 1.83 with 512 ram and 80gig HDD. I just picked up a new 160gig internal and 2 1gig sticks of ram. I have all my stuff backed up on an external already. Im planning to just toss in the new HDD and ram and throw in my leopard disk. That will work right, even though theres going to be nothing on the hard drive to begin with?