Sounds like you have a great start! The two biggest things that I have learned... you don't grow in the gym (you grow while letting your body heal), and to grow you need to eat properly.
Your workout is a great start! If you are interested in other motions or isolating specific muscles here is a great link :
http://www.exrx.net/Lists/Directory.html
Finally, I would suggest adding as may compound type exersizes to your list as possible. I have included my workout (currently under revision) below. My idea is that I never want to be lifting more than 1 hour at a time (attempt each exersize for 2 sets of 8 reps... typically I fail at 6-8 reps, if I do not I add more wieght and try again). I workout MWF and take the weekends off.
Monday: Bench Press, Chinups, Inclined Dumbbell Benchpress, Dips, Dumbbell Flys, Tricep Pushdowns (these are mostly push exersizes)
Wednesday: Squats, 45Deg Leg Press, Leg Curls, Leg Extensions, Straight Leg Deadlifts, Calf Raise, Dumbbell Row, Lat. Pulldown, Barbell Bicep Curls (I really have to bust my ass to get this done in 1 hour).
Friday: Close Grip Benchpress, Military Press, Seated Dumbbell Press, French Press, Lat. Raise, Abs (I treat abs like any other muscle, I do weighted situps 2 sets of 8-10 reps to failure).
Have a great time in the gym and remember to get your sleep if you want to grow!
Slacker