How can I get more information out of 'uptime'?
Currently I only get time, days/hrs up, users, load averages.

On my M$ boxes I watch , I get stuff like this:

System Availability: 99.9910%
                  Total Uptime: 95d 5h:44m:32s
                Total Downtime: 0d 0h:12m:18s
                 Total Reboots: 6
     Mean Time Between Reboots: 15.87 days
             Total Bluescreens: 0

What do I have to install to get the same/more?