Here are the tech specs for the PhysX card offered in the Dell XPS 700:

Bus: 32-bit PCI
Memory: 128MB of 128-bit GDDR3
Memory Bandwidth: 12 GB/sec.
Memory Speed: 366MHz (DDR)
Peak Instruction Bandwidth: 20 Billion Instructions/sec
Sphere-Sphere collisions/sec.: 530 Million max
Convex-Convex (Complex) collisions/sec.533,000 max

Sounds good, but PCI? I don't know if I would be compelled to get a PC like this unless the PhysX chip was integrated on the motherboard. The only way I see that happening is if they start becoming very popular and consumers/gamers demand it.

I just want to buy a PC in a retail store and not have to deal with junky integrated graphics boards. Ugh!