I haven't been to Shabusen for a few years. You cook your own food on the table (either grill or hotpot- you choose) and they bring you as much raw food as you want. Plus as much sushi, salad, teriyaki chicken, gyoza etc. as you want. It's a pretty good deal.
Anyone been to Samba's? They have an all you can eat BBQ meat thing. I haven't been there.