handy guide from GeForce, the answer is yes.
Starting with its own $150 GeForce GTX 550 Ti graphics card, the company has compiled a list of parts needed to competently run CryTek's GPU-hungry Crysis 2. Assuming you've got the basics covered (mouse, keyboard, monitor, etc), the whole rig will only run you $599.92. While this setup won't allow maximum settings, it still kicks out a decent frame rate using above average graphical configurations.
As a bonus, it should also shut your snarky friend up.