The company I'm currently doing a contract for has given me the use of a 5,1 Mini. i5, 2.3GHz, 500GB HD, 8GB RAM. Due to it's age I don't think they will want it back but I don't want to open it up to fit a SSD, just in case. Thunderbolt (or FW800) enclosures seem to be non-existent where I live and the prices seem to be insane anyway. So is there anything I can do to give this a speed boost? Attaching a SSD in a USB 3.0 enclosure isn't going to be an improvement is it? I'm going to do a clean install of El Capitan, hoping that will run OK given the 8GB of RAM. I will mainly be using this Mini as a Jenkins slave making Unity builds of iOS and Android apps. Not so taxing on the CPU but it does tend to hammer the HD a fair bit importing and converting assets. I will upgrade when the new Mac Mini (coming soon) is available but will have to make do with this one for now. Thanks.