automate system maintenance
How do I set the computer to automatically shutdown after a system maintenance(virus scan, drive defrag) is completed
If you are running Vista or Win 7 you could try using a scheduled task that is triggered by an event log entry. Assuming that your utilities make event log entries.
You could also use something like Automate. Automate can check to see if the process is running, as well as the event logs. It can also automate the running of the utilities. That said, it is very expensive.
I think there are other automation tools maybe able to monitor the presence of processes, but I can't recall them now.