Hi all, My first post in this forum, but I used to post a bit on the iPhone forum before. I recently bought a used white MB, the 2.1GHz C2D model, 2GB RAM and unfortunately a combo drive (although I can't remember when, if ever, I burned a DVD on my laptop). The machine was bought to find out if I should make a switch to OS X, and the answer is a resounding YES!!! My first question here relates to the software update feature (accessed from the Apple menu in the menu bar). How reliable is it - i.e. if I use that, do I ever need to check the downloads section at apple.com? I ask because today (browsing this forum) I found out that there is a beta of Safari, which software update told me nothing about. What's the verdict? Thanks, and I look forward to participating here!