You can run this on your main systems also. It does not need to be dedicated to F@H.
Go into the configuration tab and set the % of CPU available to around 75% or so. Excellent response and you get decent work accomplished.
You can also name more than one machine with your user name. I have four systems, three at home and one at work. Malsua currently is running with 10 CPUs on his user name.
I'll think about it, I run datbases and compiles all day long on my other machines, and I don't really want to slow that down.