Re: Mixing Resources
The path to good sound is made by fixing the bad sound.
Often the bad sound is being caused by the operator because the musicians instrument typically sounds good (at least it is what the musician wants to hear, so it should be considered "good").
So, to paraphrase what I saw in someone's signature on one of these message boards, find something that sounds good and try not to screw it up when you make it louder. Understanding what the controls at your finger tips actually do to the sound is a powerful bit of information. This is information that can be gleaned just by plugging a basic dynamic microphone into that 1202 on your desk and fiddle with the gain, low cut, and EQ knobs. You'll get a handle on what it does pretty quickly.
Oh, and get used to hearing your voice coming out of the loudspeaker, it never sounds like what you think it sounds like.