Basically you need to run two seperate mixes from the board, one just drums which goes to the fourtrack, and one with drums and everything else, which goes to the headphones. I have to say it... the BRAND and TYPE of your mixer is very important here, because it will define how you go about setting up the two mixes. So tell us... what is the mixer, how many busses, aux sends, etc...
Without knowing your board I can only guess. How are you running the mix from the board to the fourtrack? How many drum tracks are you recording at one time? Ok lets go back a step, you first must have seperation of all the instruments. How is the band hearing themselves, you will need headphones of course. And everthing will run into the board- provided you have enough inputs. OK here is the tricky part (depending on your mixer) making sure that the signal you don't want going into the recorder isn't. So you will either have seperate busses... (your fine if you do, just send what you dont want to and what you do want to different busses) if you don't have enough busses, you can use an aux send as a "buss" if you have a pre fader aux send, then you can just turn down the fader of the signals you don't want so that they don't go in to the drum mix) or maybe you have some kind of control room out where you can select different sources to monitor...
OK here is how I do it with my Mackie 1402 (well one way, it depends on the situation, here is how I would do it in your situation) On the Mackie there is a Left/right out and an ALT 3-4 out (these are busses). I ususaly send the signal (we'll say drums) to the recorder (DAW) from the 3/4 buss. so I select ALT 3-4 for those channels. Everthing else (guitar, bass, what ever is being monitored) is assigned to the Main L/R mix. The Mackie has a control room out, and can choose which signals go to it. I send the 3-4 buss to the control room, and then send the control room to the Main mix. (so now in the main mix I am hearing 3-4 as well as the main mix) my headphone amp is fed from the main L/R out. So for me it's just a matter of hitting the right buttons. It all depends on the mixer.
-jhe
[Edited by James HE on 11-06-2000 at 00:04]