you are already going to be a good professor, without our advice, because you are so thoughtful about how you're going about things, you have the desire to do a good job, you look at things from the students' perspective, and you seem cool. so don't worry!
you could try having your students call you "mr L", or whatever your last initial is. it's not as informal as your first name, and not as formal as your last name. that's what my anatomy professor did, and we were friendly with him and laughed a lot, but we also studied hard and respected him. (anyone that friggin smart earns my respect automatically, no matter what i call him).
adding humor to the lessons helps to keep attention! and it just seems to me that if the students like YOU, they will try harder to learn the materials, out of respect for you and the fact that you're there teaching it. ofcourse, i did have a few teachers in high school who i really liked but i didn't do well in the class, but that was because i HATE physics and geometry.
i hope you keep coming back to the cellar. i bet you'll have a lot of interesting stories to tell, and intelligent advice for those of us who need it. (i love eccentric people and i really really appreciate intelligent people...don't leave us
)