I went to Future Shop yesterday and bought one of their exclusive steelbooks - one had the Autobots Protect cover and the other one had the Decepticons Destory cover. I bought the Autobot one. I also bought the Future Shop steelbook exclusive for Grindhouse: Planet Terror (I never bought Grindhouse:Deathproof as I believe that's one of the worst movies ever made).
I'll probably pick up the Transformers DVD or HD DVD at some point. Haven't gotten to it yet though.
I saw GrindHouse in the theater and while I enjoyed both movies, Planet Terror was definitely the better film. Most people seem to agree that Planet Terror is better. DeathProof was "okay" in my opinion... A bit slow at some points, but quite entertaining during others.