Change nice values of a queue

Hello Guys

I need your suggestions for the below

We have few unix jobs running in different queues
Is there any way I can manage which jobs goes to which queue and to change their nice value as well

Thanks a lot for your valuable suggestions

Sorry, what do you mean by "queues"? Is this some sort of HPC system with a batch/queue manager? If so, tell us the batch manager -- torque, openPBS, etc.