So I've been using a 15" since around 05 or 06 and just downgraded to my first 13". I'm moving and will be doing a lot of walking/carrying with this thing so I figured it's time to hop on the 13" bandwagon. Anyways, I've got all of my stuff transfered over and she's ready to go...but damn to I feel cramped! My 15" wasn't even high res, but still. For those of you with this experience, how long did it take you to adjust? And was it worth it in the end?