I have a late 2006 mac mini. Stats: http://support.apple.com/kb/SP29 I've maxed out the RAM (2GB ), upgrade the processor to 2.0Ghz Core 2 duo (gotta love socketed processors), and bumped up the HDD to 128GB. I am definitely in need of a new machine, but I want to see what the next mini and mac pro options look like, so I'm not ready to upgrade yet. The problem is I've finally hit the limit of the HDD - I now have too much music/pictures etc. and I have 2 gigs remaining. I'm guessing I'm pushing against the swap space, because it definitely feels like it's getting sluggish and producing errors more often (importing photos/movies into iPhoto is rather annoying/impossible. Yes, I can always add more HDDs to fix the space issue, but I'm thinking I might want to get a speed bump while I'm at it. Also, when I upgrade the machine, I can either swap the SSD with the primary (if Apple doesn't do PCI-e which is unlikely), or drop it in an enclosure and have some fast external storage with thunderbolt. Most people have positive things to say about the Samsung 840 pro, so that's what I'm thinking. For the current machine, of course it is overkill as it is only SATA 1(not sure - spec just says SATA?), but I'm looking to future proof it for the new machine as well. So question #1 - Would a SATA 3 drive work in a machine that old? question #2 - Is it worth it? or should I just save my pennies for the new machine and fix my current situation with band-aids like partitioning my backup drive to give me some usable space or cheap USB thumb drives get me by? Thanks!