Good Evening, I am coming to the world of Mac finally. I was able to get a MacBook to test drive for a excellent price so I hopped on it. Its new to me...2008 MBP with the Intel core 2 Duo, 2.4 GHz, RAM upgraded to 4GB, 3 batteries and new 85-watt cord from Apple. Good News = works flawless when plugged in. Not one issue. Bad News = one usb shorts out and owner cannot seem to get batteries to charge (hence the purchase of the $70 new charger). Overall News = sold me the entire kit and caboodle for $100. I figured it would be a good start into the Mac world for me to see if I really like it. I am already a little upset with me owning a mid year 2010 HP and a Mac from 2008 having better performance and graphics. Moores law states this should just not happen...ANWAYS Side Notes: 1. Owner has cleaned battery contacts and ran SMC reset. Now what he does not know is if the batteries are worth jack. He said each had something like 200+ cycles showing. I have no idea what that means and if it is a good thing or if that could mean they are some cheap knock off china made batteries. 2. USB shortage does give me a little worry but seeing this thing is bluetooth, my mouse should be fine. My Questions: 1. Is 200 cycles bad for that year and should I update to a genuine Apple battery? What is the proper cycles for it and would that stop it from charging? 2. Anything I should immediately look at as soon as I get it? He currently has Apple 10.6 on it right now but told me it should be able to handle 10.9(no idea what that is) with ease. 3. I read it could actually beef up to 6gb of RAM (1 x 2gb, 1 x4gb). Is this possible? I want to thank everyone in advance. I appreciate it. I am a Windows guy. Been windows forever and it is actually what I use to develop on as well. So I would love to see what all the hubbubb is about with Mac. I am not expecting it to blow my socks off but on paper is it considerably faster than what I am typing this thread with and better screen and already has more ram so I am prod to join the club.