Good deal on a qosmio g20, but good for student?

Hello. Basically my situation is that I need a laptop for university in the fall. I will use this computer for internet surfing, photoshop, powerpoint presentations, word processing, dvd's, listening to music, occasional gaming. extra with qosmio) playing my x-box using the 17inch screen. to expand upon the gaming as that seems to be the biggest factor when buying, i figure if it can play half life two now, it can play some decent games that might come out in a year, 2 years etc...

Now, i've done quite a bit of research online. The cons of the qosmio are bad battery life, heavy 9.5 pounds. But in terms of the better performance, i'd be willing to carry it. Also i don't for see myself travelling around too much to places where i could not plug it in (university classroms have some jacks) once concern is the fan, though. is it too loud for a classroom?

Another important thing about this is that i can acquire one for 2200 dollars candian (reg is 3500). It's not stolen, just an open-box one, but checked out before hand to make sure it's in good working order and nothing was wrong with it. This also means i would not have any extended warrenty. These are the most important stats:

Toshiba
Qosmio