honestly, this is my system
MOBO: Asus m2n8-vmx
CPU: AMD athlon x2 dual core 3600+ @ 2.3ghz
RAM: 1.5gb (1x 1gb + 1x 512mb) kingston 667mhz ram
GFX: Leadtek 8600gt 512mb
HDD: wester digital 80gb ide (soon upgrading to SATA 250gb)
all up probably around $500 australian but i left out a few things there but they would all add up to about 75 bucks
i think if i went and bought crysis it would run absolutely fine on my system on medium settings, for other ppl maybe not coz 85% of ppl have their computer set up like retards with so much spyware and SHIT and gay useless programs that they install when they buy their computer on it that it runs half as fast as it should. Anyway i'd be happy with it running on medium.