In theory any modern card can play Crysis maxed. Whether the framerate is PLAYABLE is another matter. (Again, highly dependent on your target resolution as well.)

Even I use Newegg for the vast majority of my hardware purchases.

Anyway, I suggest just looking at various hardware review sites. Anandtech is one (though it might be a tad hard to browse there since they cover general tech news as well.) I used to read Tom's Hardware and Guru3D until I got sick of the writing style. (Guru3D sounded like an utter fanboy writing most of the time. The numbers and data were fine; the writing, amateurish.)

How cheap is "cheap", anyway?