Let the hive mind of Engadget get that for you.
"I just moved into a new apartment and have been reading about all of the new power strips out there, especially the green ones. I was wondering if you had any suggestions about which "green "power strips are out there with decent joules ratings. And when I say green, I mean power strips that have the remotes or switches to turn off all electricity flowing to certain plugs and with at least 2 plugs that are always on. I was looking specifically at sub $50 because I will need two, but if that is not possible I could be convinced otherwise. Thanks!"
Mac batteries have a bit of "intelligence" to them. I use a widget called IStat pro to view it's specs. With 1 click I can tell you that my battery is at 100% charge, has been through 697 cycle and has 100% health :)