Have fun Greg! I think that my husband and I enjoyed our girls high school years almost as much as they did. Even though we have three daughters, we were and remain a drama free house.
Let them have choices and decisions that are theirs to make. Choose your battles wisely. Most things aren't worth fighting about. Save the fights for things that matter.
Clothes - unless it's skanky, let them choose what to wear.
Room - they live in it - if it's messy, close the door. (Once in a while, spend a quality afternoon with them cleaning it out. Take them out for starbucks later as a reward. Our only rule about the room was the "no food" rule, which seemed very reasonable to me and the girls went along with it).
School - For us, this was the priority, but we never stressed the actual letter grade. We stressed effort.
For our part, as parents we tried to:
Have family dinner together every night. (Family dinner was difficult during high school, but have a salad earlier and push dinner back if possible. Make it a priority.) Friends were always welcome.
Praise in public, criticize in private.
Model a good sense of humor.
Volunteer in your kids school activities.
Encourage them to make good choices. (I must have said this a lot. My kids jokingly say "make good choices" to each other when they go out at night with their friends. They have even offered that advice to my husband and I when we go out
My youngest graduated in 2009. Time flies! I truly miss those days.