I think you'd like the 600m better...2 inches might not seem like alot, but in viewable area it sort of is. You are right that the keyboard is smaller...I think it is nice for travel but if you will be using it as your primary computer you will be happier with the 600m. If you are worried about bulk, the 600m is still a tad under 5 lbs which is pretty fantastic. Be sure to check out slickdeals.net. They are really good about finding coupon codes for Dell. Please don't order without being able to get a coupon. It will save you alot of money!