Hi fellow forumers: I just got my macbook pro 13inch yesterday So far i am loving it a lot!, but i am confused on some things 1. how do i tell whats the operating system i am running? like how much GB i have remanning whats my system specs? should i purchase Microsoft word or can i download it somewhere? What are some important/useful programs to have for mac? What is Lion OX? or OS? Thanks in advance!