For those who dont know what stepmania is, it's a DDR simulator for the PC. You can play using both a dance mat or a keyboard, which is suprisingly fun.
Now my favourite songs are:
AA - http://www.bemanistyle.com/sims/simfile.php?id=2549
A remix of one of the best songs on DDR 8th Mix, it's a long run of 16th notes with few holds which is what I like and it varies a lot.
Quasar - http://www.bemanistyle.com/sims/simfile.php?id=998
One hell of a song, google video link is here: http://video.google.com/videoplay?do...pmania&pl=true
I can't do it on that difficulty though
FF7 Boss Fight - http://www.bemanistyle.com/sims/simfile.php?id=1868
Step file to the Black Mages song Those who fight further. Perfectly synced and very varied.
To download these you need a bemani style forums account but I'm sure you can get one off bugmenot or something if you don't want to register.