Hi A friend of mine has offered to sell me his macbook pro and i am considering it. However I know very little and have only had dell laptops in the past. It is a 13'' duo core 2.4gh ddr3 ram with 320gb . He will also give me mac office. He is asking for 800. Im wondering if this is worth the money as it is the duo core and my Dell has the i7 technology. To be honest I dont even know what this means. I just want a decent laptop that will not be slow and outdated in a year! I would be using it for work-im a teacher. Any advice would be great thanks!!