why are you pinging me? whatever frag says, i endorse.
aoe3 + the two expansions
rise of legends
coh + expansion
a 7950 or X1950 laptop card is better for current game performance than any current DX10 laptop card except MAYBE the recent 8700M GT, which i've never seen benched. that said, my 8600M GT runs the above games like champs, with only coh needing a bump down in texture quality due to my 256MB video ram. the 7950 and the X1950 mobile cards come in 512MB configurations.
laptops are never gonna be ideal for gaming, but any laptop with a 79XX+ or 86XX+ discrete card with 256MB or more RAM will be fine for the next couple years of RTS games at medium-to-high settings. get a good proc if you wanna run supreme commander -- like a 2.0 GHz C2D (T7300) or faster.