This is actually my first time doing this, and I didn't really know what to charge, but now that I've gotten the chance to try, I can say with confidence that the low-res icons alone will cost $15, while hi-res will cost $40. The reason why hi-res is going to be that much is because you get both the lo and hi-res versions, and hi-res takes the longest. I'm not taking any more of these at the moment, but I'll open them up soon.
I did have to chop off some frames for each, especially the Lo-Res so DA and FA would take them as his icons. The file sizes were larger than the sites would take as an avatar.
I hope you enjoy it =).