Laptop graphics card dliemma

Hey
I was looking to but an Asus laptop around the Aus$2000 price range. I have two ones im tossing up and was wondering if anyone could shed some light on which one would be better for games (i dont know much about computers, but i know any will handle my uni work
They are both the same price Aus$2099 but i was wondering wheather 4gb ram > bit better processor and graphics card. Also is the graphics card on the one below dedicated ram or do i have to allocate it in the bios?

ASUS F8SN F8SN-4S005C Notebook Features:

Microsoft Windows Vista Home Premum
Intel Core 2 Duo T8300 2.4GHz Processor
Mobile Intel 965PM Express Chipset
nVidia GeForce 9500M GS with 512MB VRAM
2GB DDR2 667MHz Memory
250GB SATA 5400rpm Hard Drive
DVD Rewriter Double Layer
14" WXGA+ (1440x900)
Inbuilt TV Tuner
DVI, S-Video Output
1.3 Mega Pixel Camera
Battery Life: Up to 2.0hrs
Weight: from 2.59kg

ASUS A7SV A7SV-7S118C Features:

Microsoft Windows Vista Home Premium
Intel Core 2 Duo T7500 2.2GHz Processor
Mobile Intel 965PM Express Chipset
NVIDIA Geforce 8600M GS, Dedicated 256MB GDDR2 VRAM
Hybrid Digital TV Tuner
4GB DDR2 667MHz Memory
250GB 4200rpm Hard Drive
DVD Rewriter Double Layer
17" WXGA+ Colourshine (1440x900)
DVI, VGA, S-Video Output
1.3 Mega Pixel Camera
Audio DJ (Plays CDs without booting up through Windows)
Battery Life: Upto 3hrs
Weight: from 4.0kg

For $2000.00 you should be able to get a XPS model Dell. I woulndt even hesitate to get an XPS.

At least take a look.