I'm trying to give some recs for my nephew for a new computer, he's into some 3D art and gaming but he's not rendering 3D video or anything too crazy.

I know there's all kinds of options so I was hoping the experts here could maybe tell me what kind of requirements I should be looking for on Black Friday deals from a RAM/Chip/graphics/etc standpoint.

I'd like to keep it under $800 and doesn't have to be new new, refurbs are an option, just trying to see what list of requirements I should give my sister to look around for so it will last him at least a little while.