Is there a program that can switch my rig off and on e every day or 2?
Well you could get a simple rig resetter. See SMOS website, they sell rig resetters. Or you could build your own, its not that complicated. Or you could have a switched PDU.
Why such expensive options? Just add the following to your claymore batch file at the end: -r 1440
1440 is time in minutes, it will restart your system after 1440 minutes ( 60 x 24 ) of continuous run.