I can get a decent power life?? Maybe? So i'm wondering about joining the powers of the 6 cell and 4 cell batteries... Perhaps my google/forums search wizardry is sub-par... but I've been researching intensively for days and days and can't seem to get all the info I want... 1. So... can the 6 cell and 4 cell be attached at the same time, or is it a swap-out jive? 2. a) Even if they can't both be attached, what's the weight of both with the tablet? (i.e. total weight of my case) b) The tablet with just the 4 cell? c) The tablet with just the 6 cell? 3. Also... how does removing the optical drive and putting in the "weight-saver" affect these weights? 4. and of course... what total battery life can I expect from a 4 and 6 cell mighty morphin' team?