Description of problem: Please allow the user to set a level (niceness) that the backup job will run at. Version-Release number of selected component (if applicable): fwbackups-1.43.0-0.1.beta3.fc6
You might want to actually hide the "niceness" value itself and abstract it to textual representations of the priorities, ie. Lowest, Lower, Default, Higher, Highest. I don't think most people need (or care about) 40 levels of granularity (oh, btw, it goes to -20 to 19 :)