when creating a model for a game you need to keep the poly count low. like under 10,000 triangles for a 'hero' model (model you expect players to pay attention to or that just stick out)
and other models should be below 2000 triangles
in otherwords, you should check the polycount of the final model you made and decide whether or not he's going to be a 'hero' model. as a rough guide, the citezen models in HL2 are under 3000 polys i think. the main characters are between 6000 and 9000
the reason why poly counts should be low is obvious... more polys there are the more processing you've got to do, and dont' expect everyone to have duel graphics cards.
10,000 polys isn't much when you want lots of detail, but thats why you have techniques such as texture/bump/normal/displacement/mip mapping
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D