Errr, I meant ddrmaniax.net (or .com, can never remember which).
Anyway, I tried that Dancing Monkey. Well, 4 out of 6 songs it found the bpm and gap correctly. 1 of those songs it made some weird free, it did the hard part very well, finding the bpm and gap. Making steps after that is easy to do manually. You could easily do that inside of stepmania.