You seem to be able to get much higher quality recordings than I can...mind handling (re)recording for the DS stuff? (since I had constant internet issues so I couldn't set up a torrent, and then the improvements happened and all that stuff). Heck you could even handle the whole submission process, I could just send a message mentioning that the submitter is different and everything could (probably) be worked out through a private message thread on SDA, if that works.
As for music, just go with whatever sounds coolest, there's loads of good stuff on youtube that can be found easily.
Oh obviously there's interest from me in seeing this video.