Homemade Sega Saturn Games

Hi, My name is UltraDev. I would like to know where I may be able to find info on publishing my own sega saturn game wither it be in the legal way or not and what are you views on this?
Notice also that the SGL library docs say that it's for registed developers only (Altough the compiler ones does not claim that, and seems to be under the GPL(right?)). However, there is little chance you'll get problems out of that. Just don't think about selling them or anything.
Well, I do know that the compiler itself has to be completely legal. It is GCC, after all.

I've heard rumors that the compiler was "leaked" by Sega themselves... That is, it wasn't really leaked, but was publically released for non-commercial use. I don't know how true that is, though.