Thanks for all the kind words, guys!
I wired up most of the custom controller board last night, and I'm going to try to get most of the wiring out of the way today; though I can't finish this thing until at least Thursday, however; it's running off of 6AA batteries, and it seems RadioShack no longer carries the coverless 2 AA battery pack holders anymore.

I ended up going the DigiKey route and shipping via 2nd Day Air, hopefully they get here on time so I can install the custom battery pack!
And just a few notes about the project; the unit will run off of 6 AA cells (7.2v) with a capacity of 2650mAh. The 6 button section actually isn't from a Genesis controller at all, but instead from a Famiclone controller that was modeled after the 6-button Genesis pad. The plastic was surprisingly sturdy, so I used it due to its small size. The nifty start button came from that same controller. The d-pad section is actually off of one of my two GameBoy colors. It's small, comfy, and I had to keep SOMETHING Nintendo-related on there, what with all that Sega crap!
More updates soon, stay tuned! And thanks for looking!
CTFan