hahah
As far as which battery you chose, I'd just keep in mind how many times you plan on taping, when you will need continuous battery life (such as a phish summer tour, where you might go 2 days in a row without charging) if that were the case, I'd go with the VNC-130 instead of the 65. Just having that extra security is a good feeling. I know i didn't charge my battery between charlotte > atlanta, and I still had a solid amount of battery life left(that was also including powering the USBPre, which runs on laptop power)
As far as being compatable with the vaio picturebook, it would work fine with the picturebook C1-X, but then again, I'm not sure as to what model you are looking into. They have quality customer service, so you're best bet if you can't find the model of your notebook would just be to e-mail them.