Hi guys, I'm helping my parents set up an entertainment system based around a 2010 mini— MC270XX/A, the last one with an optical drive. We found a nice deal refurbished; it should arrive sometime next week. They will use it as an iTunes hub, for Netflix and other video streaming, etc., and also as a DVD player. First of all, will it have any issues running Mountain Lion (and Mavericks later)? What's the best way to install the new OS? Second, will upgrading the RAM from 2GB to 4GB make a noticeable difference in system speed? Finally, and this is the main thing: I'm wondering if the internal 5400 RPM hard drive will be noticeably slow. I already looked at replacing it, but that looks like a nightmare. So now I'm considering getting an external SSD to use as a boot drive, via FireWire 800. I found this enclosure on eBay. Combined with an SSD like this one, would the whole thing be worth it? I would use the internal drive as storage for media files, and use the external FW SSD as startup disk with user folder. As you can probably tell, I'm trying to cut corners wherever I can to save cost, so if these upgrades would only bring minimal improvement, I probably won't bother. Considering how the computer will be used, do you have any input?