It's not every single day you're going to get two posts out of me but I just read about a way of setting up the basic elements of a mix that's a little different than I usually do it. It was written about mixing in the studio and using reference material to set relative levels. You can read the original here but I'll give you the quick run down.
Go ahead and line check all your inputs, then instead of setting up the drums mix, adding in bass and working your way up the chain till you get to lead vox, work backwards from there. If you start with the lead vox and then match the snare in volume to it, then you can balance the kick to the snare and add the bass on top of that. Guitars and other stuff should be pretty easy to slot in at that point.
Think about it. How may times have you based a mix on that first input, the kick drum, and found yourself way louder than you need to be and crushing your audience by the time you finally pile on the vocals and guitar solos. If you start with the most important thing first, then work your way down in terms of importance instead of numerically up the input list you should wind up with a very balanced mix that fits the material and the room.