Well here's my two cents for what they are worth....
I just did a bunch of research on tablet versus laptop, and basically if you want something that you can flip the screen around to write on, go with the tablet (my uncle has an acer and loves it), but the price for wehat you are getting, just isn't really there.
I just ordered a dell 600m inspiron,
1.4ghz pentium M, 64mb video card, 60gb hd, 14.1in screen, dvd+rw, integrated bluetooth and wireless, internal modem, 512 ram, 3yr extended warrenty and 3 yr accidental warrenty (for if you drop it and break it), and windows XP Pro, for $2036. And the system weighs 4.8lbs (according to them, I will find out in a few days) which is only .2lbs more than the one you picked (which I don't know if was at random or what you wanted)
I will say this, if you have your heart set on a tablet, I would wait a few months, windows is supposed to be coming out with an updated Tablet windows with better writing recognition. Also since tablets have a different version on windows cause they need to be able to handle writing recognition, I don't know if all games will be compatible.
Peace.