actually xarthan, jacmert is correct, the 9300 does fit much better on a mans lap than other lappies, you dont have to scrunch your legs together to hold the laptop comfortable on your lap.
I bounced back and forth on the purchasing decision for six months between the 6000 and the 9300, in the end i bit the bullet and went with the 9300 which is actually one of the smallest 17 inch widescreen notebooks you can buy and its only half an inch deeper and an inch wider than the 6000. I cant imagine half an inch in depth and an inch in width making THAT much difference when sitting on a table or desk, I had no problems on an airplane. There's alot to be said for a seventeen inch widescreen with about thirty percent more viewing area and an excellent video card which was a deal clincher for me. My system is the same size as my coworkers Acer Travel Mate 15.4 inch widescreen maybe a bit smaller.
Those of you who are looking at portability foremost should consider your everyday use and performance and features of a laptop before making a purchase. Alot of 700M owners have buyers remorse due to inadequate capabilities (besides being able to play solitaire in lecture halls) and a woefully inadequate keyboard that is not comfortable to type on. Food for thought. Be sure to go out and look at some models too before buying, but the posters above are correct, the weight should not be an issue, if you have an issue with carrying about eight pounds of laptop, maybe ten pounds with acessories and power brick, and are not handicapped in any way, I would say the weight issue is a problem with the individual and not the laptop.
If youre that worried about weight and portability, then you shouldnt get a laptop at all, go and get a PDA device, you can surf and take notes on that (or play solitaire during lectures). for alot less than the price of a laptop.