Hey all i just joined the cult of mac by buying a new 12" ibook this past week. I have been a windows user pretty much all my life but am tired with their lack of everything good so i switched. I have some basic questions. I want to upgrade the ram but wont buy it from apple ( too expensive) and i was reading the manual and it says i only have one ram slot but max ram is 1.5 GB how is that possible it should be max 1GB if only one slot is behind the keyboard i want to have 1 GIG of ram and it has 512 already so do i have to buy a new 1 GIG stick and remove the 512 to put the gig in there? and also, the 40 GB HD comes with only 25 Gb of room after they install all those programs like iDVD and iPhoto, i dragged most of those programs to the trash to delete them but only got back like a gig how do i make my HD space go up to like 30 GB or is that even possible with OS X (does OS X take THAT much room??)?