Well, I've found out from personal experience that LJ42' template doesn't have correct dimensions, at least when it comes to US PS3 cases. All of my SF4 covers are messed up because of that, apparently...
So... just be aware of that.
Good to know

You don't happen to know the 'proper' dimensions of the standard US case do ya? Shouldn't be too much work to modify (would explain why my printed sample seamed a little snug, I was just chalking it up it being heavy photo paper).
Edit: Went and grabbed the various dimensions from the SF IV thread...
"Insider Admin FAQ" says 3189 x 1776
the7k used 3286 x 1776
Sheep2001 says 3224 x 1760
or 3213 x 1760 (based on scans and measures)
Jigsaw says 3213 x 1760 (based on trial and error of all mentioned, resulted in best fit / proportions)
Any definitive answer on which we're going with?