Ultrafractal 5

I have been having a lot of fun with Ultrafractal 5. It is a little daunting at first, but it's a great tool after you spend a little time on it. I think what I like most about it is the high level of control that you have at the trap level.

Being on the UF mailing list has helped to smooth out the learning curve. There are a few people who are willing to teach and lots who are willing to learn. If you do have UF 5 and are not on the mailing list, you'll spend a lot of time spinning your wheels. Sign up for it here.