I've already tried searching for some info on this, and what I have found so far is this: FCP can only use 2.5 gigs of ram? (Is this still true?) It's ideal to have at least 1 gig of ram per core. So I'm trying to sift through the info to find out what I will need. I'm running a 2.8 Octo Mac Pro, and looking to upgrade the RAM. I originally wanted another 8 gig (bringing the total up to 10 gig), but I feel like this will be overkill now. Also, buying 4 gigs (2 gigx2) vs. 8 gigs (2 gigx4) is the same in cost per gig, so if I decide I need more later, it won't cost anything extra per gig - another factor to consider. How much RAM should I get if I am just editing HDV in FCP? Will having only 6 vs. 10 make that much of a difference? Would the computer even use all 6? Is there any truth to the "1 gig per core" statement? I just don't want to start editing and then wish that I had gone with the 10 gigs instead of 6. Any help and advice would be greatly appreciated. Thanks!