I went through several point-and-shoot cameras before switching to an SLR.
Why did I get an SLR?
I was tired of blurry photographs. In case you didn't know, children move fast.
What is an SLR camera?
"The single-lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non-SLR cameras where the view through the viewfinder could be significantly different from what was captured on film." -- from Wikipedia
Which camera do I use?
I currently use the Nikon D40. You can read about it here. I've used Nikon cameras for years based off of a friend's recommendation. I don't have anything against Canon cameras. I hear they're fantastic. Ask a Canon user, they'll suggest a Canon. Ask a Nikon user, they'll suggest a Nikon. If you're thinking about making the switch to an SLR, I'd suggest trying out several cameras in the store before throwing down your credit card.
I love my camera. I love my lenses. Photography and pictures are an important part of my life. I hope to learn more as the years go by.