Welcome to the forum ArmedPT! You and I share a very similar taste in snakes.

I can second dakski's recommendation of Tommy Carpenter and Vin Russo for locality boas. Both respond well to email, and I've actually traded emails with both of them this week regarding boa availability. Their Facebook pages are a good place to look to see what litters are being born.

I'm kinda in the same boat as you, though in my case I may be picking my first snake up this weekend. If you don't mind me asking, was your IJ your first snake? Do you think an IJ would be overwhelming for a beginner? My shortlist is currently ball pythons, IJ carpets, and dwarf-to-medium locality boas (though I am entertaining the possibility of a male BI as well), and I'd love to hear more from owners of the last two before I take the plunge.