I have a 2009 macbook and soon will also have a 2009 macbook pro. The pro has a 2.53GHz and macbook is 2.26GHz but other than that think all but the same. Should I stick with the white unibody of is it worth the slight speed gain to change? I am not going to be major upset to not get sierra on the pro as worked great on my unibody but the battery gain is very nice in the white unibody but not a deal breaker. I do not yet have the pro. I am wanting advice and findings from you guys. Im thinking of swapping optical for second hdd in the unibody but not want do it if the pro is better option. Any input would be useful guys.