Nvidia ion le netbook vs 13" notebook?

i'm contemplating an hp mini 311 netbook, mainly because it's small enough (11"x8", 3 lbs.) that i can probably carry it around with me all day. it has an nvidia ion le (atom n280 1.66 ghz with an nvidia geforce 9400m). the most processor-intense thing i do is cs:s (say aztec with 30 bots), which i would like to play at 60 fps, but is 30 fps playable? my current computer is an hp zd7168cl (p4 3 ghz nvidia geforce fx go5600) which can drop to 15 fps at critical times which to me is unplayable. or does it make more sense to get an hp dv3t (13"x9", 5 lbs.) notebook (core 2 duo 2.5 ghz with an nvidia geforce g105 m)? would that perform better on cs:s? if you're not a navy seal, is that easy to carry around all day?