If game is for profit, per-game sale pricing can be arranged.
Also, where can I find good tilesets for platformers, since this is for a platformer? I'm looking for futuristic urban type tilesets, and the only links the GMC has in the list are for Zelda sets.
If the game is for profit, you pretty much need custom, original graphics, or you might get sued into oblivion over copyright issues and such.
If you decide to use graphics from other games, i.e not profit from it, here's a site with a huge amount of tilesets and stuff: http://www.spriters-resource.com/
thanks a bunch! =)