I have decided to make the leap from iMac to mac pro due to my increased interest in Logic and my wife's new Photography business. I don't think I will need the fastest computer, but I want something that will last. What upgrades should I purchase? I am thinking just stock and purchase some 3rd party ram + extra internal hard drive. Lastly, when to buy? Will we see updates soon for the lower end Mac Pro? Any major advancements in the near future? Thanks!