Nice camera!
A few general Tips:
Clean your glass, inside and out.
Use a tripod or some other sturdy support
Turn off all you pumps while shooting
Soot parallel to the glass (straight on)
The macro preset on your camera is a good place to start out of the box if you're not experienced with the manual settings on your camera. Also, read the manual for your camera and start experimenting. You can do quite a bit with the kit you have.
When you're interested I have a top down box I can let you borrow.