I'm a writer; and my main use for my new Mac Pro Desktop would be -- beside the usual web surfing, email, word processing, and video conferencing -- working on various projects which includes the putting together of entire contents of a book from cover to cover and/or desktop publishing projects with using either QuarkXpress or Adobe InDesign CS3 (I haven't decided what program to use yet, but it will be one of these two). I will also be adding 8GB of memory from OWC, as well, to speed things up a bit since the cost of the 8GB of memory is quite excellent at this time. I also would want to leave my options open for working on material that requires video or projects that require faster systems to run this sort of material. Basically, I would like to have a machine which is somewhat future-proof in case I want to work in many different areas over the next few years. I know on the Apple Store the faster 3.2Ghz system base price is $800 more than the 3.0Ghz system; so is the extra cost worth it for what I will be using it for (mainly various book projects)? This would be my first Mac Computer purchase-ever as I've been a life-long desktop Windows PC user. Thanks in advance for your help!