Yes there is a difference. NSTC is 30.. well really 29.95. PAL is 25fps. PAL is used in the UK and other places.. personly I think PAL is better.. Higher res also. 24fps is what film gose at. (which you have to take in to consideration if you really want it to look good like film)

yikes, unless you don't have a program to edit with. I wouldn't wory about the fps coming out of Maya. AfterEffects and Vdub are 2 progams that I know of that let you change the fps play back to what you want. I don't know if the fps of the avi can be set in maya.