Well I did the "HaD3k JVC mod" today... and the new AC adaptor works flawlessly.
The only thing I'm not 100% satisfied with is the fact I had to bend the positive battery contact in order to grip it with the alligator clips. I wanted to maintain a non-destructive mod... with exception of notching the lid to allow room for the wires.
I suppose a AA battery could still fit inside without too much fuss, so its probably ok. And I realize I'll probably only use it as a mobile device <1% of the time, but I still wanted to maintain an optional battery operation.
That said, I think the result turned out very nice. Thanks HaD3k for the links/pics.
XBL: HiFi Buckeye