Laptop video cards?

If your lucky enough to have a laptop with a dedicated video card then this topic isn't for you.

I have a Alienware Sentia M3200 (223) with a Intel Integrated Extreme graphics for mobile 2 64MB 850GMA Series shared card. I don't mind it sharing my RAM as it has 2GB and is running XP but is there any dedicated graphics cards that can run on a mini-PCI slot? I didn't find any so probably not.

Here's the rest of the system specs:
Intel Pentium M 960 2GHz OCed to 2.2GHz factory
2048MB DDRII-533MHz RAM
60GB 5,400RPM HD
DVD-ROM/CD-RW drive
The Intel graphics card
4.0 Altec Lansing integrated speaker system (2 on front, 2 on brezel) w/ AC'97 5.1 sound card.

i have an dell inspiron 1520

1.5 GHz dual core
8500 GS video card.. (not sure, im at work.. can't check)
160 GB HDD
2g ram
vista premium