Modding and where to start

Greetings, all. I've been cooking up a few ideas I would like to try my hands getting in game, and would, simply put, like some advice on where to start. I've modded games before, so I'm not completely inexperienced but the majority of those were with dedicated modding programs, and from what little I know BG is a whole other matter.

So, to the point. Are there any good tutorials or such still floating around out there? Do old tutorials still apply (more or less) to BGEE? If positive, which ones would you recommend?

Thanks in advance and all.