Nemesis, get yourself to a riding school ASAP. Keith Code and Reg Pridmore hold schools at the Streets of Willow Springs, which is a blast to ride and great for learning. Take both schools if you can afford it. If not, take Reg Pridmore's school. You'll get a lot more track time and I'll be there to take photos so you can prove to your friends/family that you were on the track.
Reg also has a couple of schools planned at California Raceway in Arpil. Check out his web site: http://www.classrides.com
Keith's site is http://www.superbikeschool.com
If you take Code's school you'll learn a lot, including the most dangerous line through a corner, which is the reason I recommend Pridmore's school over Code's school. Not trying to start a flame war here, but I had several close calls on tracks last summer when people went into corners way too wide and then cut across my bow to the apex. The common denominator? They had all just taken Code's school.
Be forewarned though, riding on the track is addictive.
A little over a year ago I was in the same situtaion you're in. I bought a motorcycle after five years with no bike, and did not feel comfortable with my skills, partially from several close calls years earlier. I enrolled in Code's school, Pridmore's school, and the DP Safety School. My first time on the track, following the instructor around on the siting laps, was sheer terror combined with total joy.
Now, after 17 schools and track days in 14 months, I'm much more comfortable and way faster (24 seconds at the Streets! woo hoo!). I can even get my knee down without scaring myself.
The problem? Doing 100+ mph on the track doesn't scare me at all. That's fun. Well, except for the time my tires went off and I got into a major front end slide at 95 mph through Turn 1 at Thunderhill. But I had enough instruction that I knew what to do. As Jason Pridmore tells his students, "Never give up on a corner."
Commuting to work on my bike scares the hell out of me though. Too many crazed cagers with cell phones out there.