the more you use it the more you're gonna love it... also, as we are all tempted to just jump right into taking pictures, i would suggest you thoroughly read the manual front to back as there might be features that you'll find useful
Know what genre of shots you are interested in taking, then find a few books on amazon about shooting that genre. For bonus prizes, try replicating the pictures in the book.
Buy a copy of Bryan Peterson's Understanding Exposure and read it while you wait for your camera to show up! It will save you an untold amount of time re-inventing the wheel.
Congrats! I too am in the midst of reading my manual. I will also be grabbing a copy of understanding exposure.. also try this webiste: very informative! This blogger also suggests getting that book!