I just started a thread about the same. I recently acquired a gt cab too. I went around about using a 27" TV also, but in the end I'm going with a 28" LCD. It should be the same as a 24" 4:3 monitor. I will have to mod the cab internally to get the extra 1.25" I need to fit it. Should be easy and unnoticable. I plan to plug the exisiting holes in the cp with glue and dowel rod and redrill for a 2 player 7 buttons. I finally figurred that I didn't want to deal with decasing a TV, tryying to mount it, the weight, etc. Plus LCD will be easier to replace in the future....looking forward to seeing your progress...