Hi guys, I stumbled upon the midibox site looking for some midi electronics project to play with and am just amazed at the prospective ease of the MBSID. All the hard work and technical knowledge that would usually be out of my current reach has been taken care of for me. Now, I have most all of my parts on order, with the exception of the power supply. See, I would like to build a basic single MBSID with step A controls into the case of a Yamaha midi keyboard I also have on order. Preferably to wire the keyboards midi out to the MBSID's midi in internally (or perhaps with a short external cord to keep the midi ports usable). The keyboard says it pulls 35ma off of 6 AA bateries or 2 W off of an AC adapter. Could I power both the MBSID and the keyboard off of the batteries, even if I have to use more than the 6? My intentions are to make this portable and self contained so that I just have to plug into my amp.