You can get Step'n Music @ simulationstyle.com.
(You can download DDR simfiles and put into Step'n Music. I'm somewhat in charge of making the characters. So if you want, ask me.)
Or if you want the real deal, you can get Feeling PoMu...
Quote:
Originally Posted by Shito  oh, sorry 
try this one then ‚‚[‚‚‚‚‚‚‚‚‚‚
it's in japanese, scroll down until you see ''Ver 0.7701[full]''then click on it |
And the goodness of original songs, theme, and characers from Colorfull Canvas to go along with your Feeling PoMu.
Colorful Canvas - for feeling pomu 2nd- Official Website
As for the controller, you can try well... Online shop for a ASC, if either from a Mini to a DJ Dao or Desktop Arcade ASC. Just go ask at the Pop'n Music thread for controllers. ^^; Just havn't seen one plugged into a PC, other than Kimiko said she used some USB port to plug her controller.
Wish I can be more help. :\