I guess you don't need any more reassurance at this stage, but I had exactly the same sort of pains that you are describing with my first child and it all sounds perfectly normal to me - it means you have a strong, healthy, active child growing in there!
By the way, be careful what you wish for... once I started getting kicks in the ribs, during two of my pregnancies (1st and 3rd) the baby actually bruised my diaphragm, which can make breathing rather uncomfortable!

Look on the bright side - strong baby movements mean your baby is alive and well, and building reflexes and muscle tone. It's also a good practice run for labour - breathe through the pain

Kerrie