the performance mmc which you may found in Administrative tools will be what you are looking. You can use in conjunction with the task manager ( allow you to select columns on which modules you would like to monitor ).
The performance monitor/system monitor, is a utility used to track a range of processes and give a real time graphical display of the results, on a Windows 2003 system. This tool can be found in Start > setting > control panel > administrative tools > performance.
And meantime you can check the current process and the usage by looking into the taskmanager. By this you can get how much CPU usage the specific process is consuming and also various analysis can be done.
** In the Performance window, right-click the right pane, and then click Add Counters.
**Under Performance object , click physical disk object
**You can select all counters or specific counters. This system monitor will give a clear break down than taskmanager.