I've had this G5 1.8 GHZ machine for eight years. I put 8 GB of memory in it, 500GB hard drive, and it's a horse. I run photoshop on it and am very happy with the speed. But clearly, it's time for me to get a new machine, if only because I need to sync my iphone with Lion soon! I already have a great 27 inch monitor that's new. I don't want to splurge for a big mac tower this time. And I'm thinking that, because of my monitor, I really don't need an Imac. Is the mac mini going to be a noticeable difference running big photoshop operations, with hundreds of batches and high res file RAW files, as opposed to my G5 with all that RAM? I only do this occasionally, though. I'm not a gamer or movie watcher on this machine, either. So, does the mac mini seem like the mac for me? And secondly, if so, is it practical to keep the G5 nearby for hookup in case I want to use the optical drive, or big photoshop jobs, or as an external hard drive? What would you hardcore users do in my shoes?