anyone have any good references for how I should export my font via fontLab Studio so its compatible for OSX and Windows?
There’s an good chapter in the Fontlab manual about getting fonts ready for release and generating them. If you’re having trouble with a particularly complicated font you might want to pay one of a technically inclined type designers to handle the final production.
OpenType is the one you'd want, although TTF also works.
The difference is that OpenType can use either Type 1 or TTF outlines, and for TTF your outlines gets converted to this.
A book that explains it very easily is "Learn Fontlab Fast" by Leslie Cabarga.