I can't say enough about Ubuntu at this point. Easy to use. Very easy. Probably a bit easier than Mac OS. On this desktop I've pieced together, it's very fast. Linux is getting easier to use. They still have some things to do to make wireless easier to work with. Wireless is easier on Windows XP and Mac OS. But actually getting around, Linux is easier.
On some of the older systems I'm going to prepare, I'm going to experiment with Xubuntu. Xubuntu is a lightweight version of Ubuntu Linux, using the XFCE desktop. XFCE is designed to work on older hardware. In order for my goal of helping keep computers working longer, and out of landfills longer, I need something that can work surprisingly well enough to someone to encourage them to keep the equipment. Something free, safe, and secure. Not even a marriage is that good! Ubuntu works on lots of equipment, even much older equipment, but Xubuntu is even faster on older equipment than Ubuntu. Everything on Xubuntu is basic, but still very usuable. If a small company wanted to save money, they could have their data moved to the Linux platform, keep their old equipment, or purchase less expensive stuff, put Ubuntu, Fedora Core, or SuSE Linux on their computers, including the servers, and have a more secure system.It would be bonus if any company was to start their systems all on Linux. Save a lot of money.