Does RADMIN have tremendous overhead on PC resources and network bandwidth?

What OS.

RADMIN generally is less stable than VNC or a Term Server environment.  The products are simply displaying whats on the remote server, so PC resources used are generally under 5% and network bandwidth should be 20-48k.  

You would be better off to take a baseline of your current machine and test them real fast.

RADMIN can be a little less stable than VNC but it is much faster performance-wise, which if you reduce your colour-depth on the viewer translates to lower bandwidth utilization than VNC.

RADMIN has become my RAS of choice

I too would recommend RAdmin.  It is very fast, fits on a single floppy, and does all I need.
It _appears_ to use up lots of processor resource on the server, but is actually runing as a lower priority tasks than anything else, so using up what's left, so you get the best speed without impacting server performance.  You can reduce this still further by reducing teh colour depth sent to the remote screen & the number of updates per second.  Any product like this should also only be sending data when the screen is changing, so the bandwidth used depends on what you're doing with it.  I used to use it very succesfully over a 64k ISDN line before i got broadband, & I think I've even used it once over a 9k6 mobile phone link.

davedotevans,
I understand amount of data transferred is a function of amount of activity being performed on the PC.
But still do you think it is possible to get some numbers, how much of network bandwidth it would use for a normal usage of PC by a developer working on 3 to 4 windows symultaneously.. that's what most of the technical people do.

Secondly, I am really looking for how much of server resource in terms of percentage of memory and CPU RADMIN takes.

Thank you