I have used two different computers over the years.. a lime green 333 iMac G3 and a 1.8 dual Macintosh G5.
The piano pieces are primarily made with either Cubase VST 24 + Korg x3 keyboard.. or Protools LE + Roland a90, or TMK88 keyboards.
I generally used the bank piano sounds of the keyboards.. but recently have been using Reason plugins. I'm currently searching for a better composite Grand sound.
This most recent loop was made exclusively using Apple Garageband + the TMK88 keyboard controller.
I edited the loop using Quicktime Pro and created the flash loop with a demo program.
Thanks,
-Bill