Sure..........
I've been using Net Rendering and Distributed Rendering for some time now and it's excellent. You can follow Autodesks advice in "greeney's" post if you want, but if you want the 'I just wanna use my other PC to help with rendering' then I can guide ya through it.
To start with, get the two PC's connected via a network, and make sure they are talking to each other.
Then install Max on the second machine.
When you've got that far give me a shout and we'll go through it. "greeney" is right, it IS simple, but get a 'backslash' in the wrong place and.......well.......instant hair loss.
Anyway.....whenever you're ready mate.
Regards.