Today is "green" day, and for "green" day I want to turn on and off some computers by remote. This means I want to be able to telnet/ssh into a power supply to bring them up and down.
Cheap, I want cheap. Web interface is "ok" assuming it works with links (aka text based browser).
No cards... something I plugin. I want a very simple setup.
I've got test servers I rarely use and I want them off most of the time (aka... MySQL, Memcached, Asterisk, Gearman, Drizzle... all the rest).