What'd the HD+ screen be like?
And we're not picky about our graphics, as long as it runs, even at crappy resolution and lowest setting, but smoothly without too much hiccups, we're set. =).
Just to emphasis, the laptop will be meant for work based usage, with occasional light gaming. =)
i assume you are buying from NUS or NTU, with better prices than outside market, right?
is your gf rather fit and strong (not meaning her size but her fitness), able to lug a 15.6" monster laptop around to school every day? if not, i would not encourage her to get W510.
already, many guys who can pass IPPT easily or go to the gym complain of the weight AND size of W510, what more a lady...
true, the performance of W510 easily surpass many notebooks, even gaming ones, but it is big, heavy, does heat up more than the T400/T410, and short battery life - meaning she has to lug the BIG 120W AC adapter (or purchase a 90W AC which is same as your T400 using ATI graphics, again extra weight but CPU/GPU are underclocked to compensate for lack of raw power source).
of course, if she actually drives to school all the time, then the weight might not be an issue since she dun need to stand and squeeze in bus/mrt with that monster.
get the Fujitsu only if she is considering just weight. the graphics card is not much better than your T400. and Fujitsu is not well-known for heat management when they have dedicated graphics in their systems....
if she loves to have a thinkpad with graphics better than your T400, go for T410. its graphics card is that slightly better than the Fujitsu and the weight and size is more manageable for ladies. T410 graphics is adequate for light gaming and medium settings for SC2. but it is no way comparable to desktops...
if she is not buying from school but have the budget to buy from outside, getting the T410s ($3199) is the best choice. similar specs to T410 but lighter (1.75Kg only; almost same weight as 13" fujitsu), switchable graphics (Quadro for game, Intel for battery & less heat), solid state drive.
end of the day, i always recommend that a portable notebook is really gaming with low expectations. get a separate desktop if you really wanna enjoy gaming at home.