I bought my desktop way back in 2001, 2 weeks before the "Quicksilver" model was released (which is why I now read rumor sites). I felt that it was relatively out of date within a year, and I definitely started to tax it processor-wise within about 2 or 3 years. I taxed it RAM-wise within a year, upgraded, taxed it again within a year, upgraded, and I just gave in and bought some cheap RAM to get it to the max 1.5 GB (from 896 MB I had it). My question comes from reading several threads recently where people have said something to the effect of, "I just bought my mac pro and even though it's effectively a year-old machine, I don't think I'll need to upgrade for a long time." So the question I'm posing is, are the current Mac Pros really so far ahead of the game that they won't seem obsolete in a few years, like the G4 desktop did for me? Or is it that people just don't see their needs increasing so much from what they are today over the next few years that they won't need the extra oomph? Or is it some combination, or something completely different? Perhaps I should note that I consider myself a power user, generally having a large Java app running 24/7 (Azureus), the normal web and e-mail stuff, heavy PhotoShop/Dreamweaver use, will be using Aperture or LightRoom, will be playing SimCity and Civilization, watch lots of movies, and I run my own command-line Java stuff that I'm working on multi-threading for multiple cores for my research (astronomy stuff).