Roland Ax-Synth (Keytar): Drum Patches?

Just received the geeky Ax-Synth ($1104 at Musician's Friend).  To validate non-biased demos of patches (http://www.youtube.com/watch?v=uqwUfu-hpJc&feature=related). 
 
Unfortunately, there are no drum patches!!!!!  BIG RED FLAG for me!
 
I'm sad there are no drum patches ... both the librarian documentation and web googles afford little to no info on downloads/downloading for drum patches, iirc.
 
I've downloaded patches for the Fantom-X and Juno-G (librarian software, iirc) ... but I'm clueless if the Ax-Synth has been used with Ax-synth drum kits at all ... (so is the web, iirc) .
 
Any suggestions or thoughts (great or small) are exceedingly welcome.  I mean, what is a synth w/o drum patches, my friends!
 
I suppose I'll get a *Drum-tar* or something ... for adhoc jam sessions when an ad-hoc drummer (typically hard to find) is needed.