Yes, Microsoft provide a Windows 2003 Resource Kit which has a DOS like command similar to the *nix TOP utility.

Here is a brief of the "pmon" command, is available after you have installed the kit.  Click here to download the resource kit or visit here and search for "Windows Server 2003 Resource Kit Tools" if the first options were unavailable.

At CMD or command prompt type the following:

Type: pmon

The output similar to the below example will keep updating.

Memory: 2096620K Avail:1401468K  PageFlts:   866 InRam Kernel: 2556K P:112568K
 Commit: 813272K/ 562128K Limit:4036508K Peak:1500864K  Pool N:39276K P:150724K

                Mem  Mem   Page   Flts Commit  Usage   Pri  Hnd Thd  Image
CPU  CpuTime  Usage Diff   Faults Diff Charge NonP Page     Cnt Cnt  Name

                                         229752   56 27172389   51                             File Cache
98 102:47:25  28    0        0    0      0    0    0  0    0  2 Idle Process
 0   0:39:51     44    0    15821    0     28    0    0  8 2637 82 System
 0   0:00:00     52    0     1545    0    172    0    6 11   21  3 smss.exe
 0   0:01:17   1468    0    41951    0   2296    7  173 13 1034 13 csrss.exe
 0   0:00:31   3912    0    11321    0   7748   63   99 13  569 19 winlogon.exe

To exit the output screen, press the control [ctrl key] and the character "c" key on your keyboard this will exit the screen back to the original prompt.