Hi, thanks for the response! The only problem with the schools mentioned in the two threads is that the original posters are specifically looking for beginning adult classes, which is sadly *all* I seem to find, and specifically the opposite of what I'm looking for. I did see a mention for Westside Ballet though, which I had been meaning to contact for a few days since I stumbled upon their site and saw they had adult intermediate/advanced classes 4 times a week, so I think I'm going to get to that. If it works out I'll report back on it for anyone who might be searching for something similar to what I need in the future.
I will also wait to see if anyone else has other suggestions, it never hurts. Thanks for the welcome, and I will definitely be here to take part in discussions from now on!