Hi all! I'm looking at a few options for batteries for my new '08 MacBook. There are OEM batteries available, with warranty, on eBay for $60. There are also cheap knockoffs for $17. Should I shell out for the real thing here? I definitely did that for the power supply as 3rd party power supplies scare me. Does anyone have any specific recommendations for 3rd party batteries? Back when I was battery shopping for my PowerBook G4, I simply bought a stack of used OEM ones on eBay for very cheap hoping that at least one of them would work--and exactly one did--but it doesn't hold more than 2 hours charge. I kinda wish I had gone for the aftermarket ones. Thoughts?