I'm seriously considering doing this with the huge student discount at theultimatesteal.com. Will I be able to install this on two machines? I'm asking because I'm considering the purchase of a new Macbook once Leopard is released as a mobile machine...would I be able to install this on both my desktop and macbook without additional charges? Also, for those who have Office 2007 and who've used previous office products or OpenOffice, would you suggest this for me? I'm taking mostly math and science classes as a Chemistry major but I have one writing intensive class and I always have my share of classes that require word processing, and use of spreadsheet programs.