ahhh.... i c. but KitC i can make a nice mix of levels that will come out to my house speakers?
This is what is usually done.
The drums are miked (often also isolated), and all instrument and amps are fed to the FOH board, as are the vocals. You can blend the instruments with the vox to achieve a relatively balanced house mix, but the stage amps will provide the main source of instrument sounds, esp. in smallish venues. In larger halls, everything gets fed to the FOH board.
If you intend to record all this, that's another matter entirely since you WILL need a separate board for recording.