Destructoid Visceral Games the masterminds behind the Dead Space series will be auctioning off some quite excellent stuff. I got a chance to see that plasma cutter in person when I went to see the original Dead Space in California. It was quite amazing, and one of the developers (his name escapes me at the moment) made it himself. In his free time. He also made Isaac’s classic helmet and it lit up as well.
If you head HERE you can bid on 37 items, and all the proceeds will go to the Red Cross to aid in the Japan earthquake relief.