I am totally printing out that UMK3! I love that it have the move set on them.
Let me know how readable it is when you print it! (Pics would be nice as well)
I'd like to do one for Mortal Kombat II and some of the Street Fighter II versions as well sometime. Maybe MK1 as well.
My only thought is that I'll want to trim off a bit of each side of the inlay because having both pieces of paper in there causes the outside cover to bunch up a bit. Alternatively, if there's a good, thicker quality type of legal paper I can get, I could try printing on both sides of the paper.
I'm not sure how many of us here have access to printers capable of making double-sided prints, so perhaps we should experiment with slightly smaller dimensions for inlays. I'll take a random guess and say, oh, 3336 x 2100? That'll shave off about .05 inches off of each side.