msi ex720 inquiry

Hello there, I've been searching around for some ex720 information and was wondering what upgrade options are available for me. I am looking to get a P9500 for cpu but I can't find any upgrades for my GeForce 9300 GS.

Any info would be extremely appreciated.

Here are the specs:
Processor & Cache


Intel® Centrino® 2 Processor Technology Intel® CoreDuo T3400 2.16G

Operating System


Genuine Windows® software is published by Microsoft and licensed and supported by Microsoft or an authorized licensor. Genuine software helps protect you from the risks of counterfeit software, provides you with special benefits and the experience and support you expect. Learn more by visiting www.microsoft.com/genuine. Windows Vista® Home Premium

Chipsets


Intel® PM45+ICH9M

System Memory


4GB DDR2 667/800, Max:4 GB

LCD Display


17”WXGA+ LCD LCD Display

Graphics & Video Module


nVIDIA Geforce 9300M GS, 256MB DDR2 VRAM

Audio


HD Audio, 4 speakers + 1 subwoofer

HDD


320GB SATA (5400RPM)

Optical Drive


DVD Super Multi

Webcam


2.0M

Card Reader


4-in-1 Card Reader, SD/MMC/MS/XD

Communication Port


Built-in Gigabit Ethernet LAN and Modem Module
Built-in 802.11b/g/n WLAN Card / Bluetooth V2.0+EDR

I/O Port


Graphics Card Output (15-pin, D-Sub) X 1
USB2.0 Port X 3
Mic-in Port X 1
Headphone Output X 1
Modem Port X 1
LAN Port X 1
PCI Express Card X 1
IEEE1394 X 1
eSATA (USB Combo) X 1
HDMI X 1

AC Adaptor


90W

Battery Pack & Life


6/9 cells

Dimension & Weight


395(L) X 278(D) X 33.5~39.5(H)mm
3.2KG (with 6 cells battery)


And the website url to manufacturer: http://global.msi.eu/index.php?func=proddesc&maincat_no=135&prod_no=1669

Thanks.