I'm an iPHONE owner, and am graduating from college and entering the business world...I'm going to be using my new Macbook Pro as both my laptop, as well as my desktop....so it's my main, one and only machine. My question is on which to buy: 15.4 inch with 2.5 GHZ (2000$), 15.4 with 2.6 GHZ and a little extra ram ($2400), or the 17" with 2.6 GHZ and even more ram (2800$)..... Before some of you might say, "Go with the 17" with the fastest processor and most ram"......My question is, is the extra .1 GHZ processor really that much more effective, and make that much of a difference? I already have a 150GB external portable hard drive, so is it worth paying extra for more RAM? Ultimately, what is the best "bang for your buck" machine? And finally, do I go with the regular screen, or the "glossy screen"? Thanks Macfans!