http://www.youtube.com/watch?v=KDmn6UQ19Q8 In a laptop like this one the Momentus XT has shown to be the best choice for me. I need a good laptop for gaming, work and that has a good battery life. I used to use my M11x R2 for gaming and a Macbook Pro 13" for working.. but this new mac can do both. I tested the stock 750GB HDD and the Momentus XT 500GB and because of the ssd part the momentus really comes ahead. I was going to try with a full SSD but the results would be obvious. Currently, a full SSD on Macbook Pro 13" shaves about 3 seconds (boot time) from the Momentus XT.. and of course, opening files and what not is a little bit faster, but I do need the space. And for now a good sized SSD is just out of the question. These games are huge these days and they would fill up any sub-200GB ssd in no time. So, in conclusion. get the new momentus Xt, update the firmware and be a happy camper. More info - here http://forums.macrumors.com/showthread.php?t=1103514 btw - guys, do you want to get together and put all our benchmarks/fps results together? that way we dont cover what we already did.. I would be happy just to start a google spreadsheet. I think this forum has a huge potential of helping undecided people by showing some raw data.