Nick gave a beautiful overview of the Maya Bonus Tools, which may be of great use for game developers.
You can download Maya Bonus Tools over here. They are actually free.
Nick actually has a whole series of tips. He releases a new video every Tuesday, addressing some particular issue in the 3d workflow and providing his solution. The videos are very varied, covering a bunch of topics: from PBR to photoscans and scattering. We’ve worked with Nick to present some of his tutorials as videos on 80.lv. You will be able to download all related files (including the videos) over at his Gumroad. It’s completely free.