If you are just now getting into photography and are not sure if you will keep it up, I would suggest a super-zoom full-feature point and shoot. dSLRs can get very expensive, very quickly and honestly if you aren't going to spend 2-3x more on lenses than the camera itself, then you aren't using it to it's fullest potential.
Check out this camera. I got started on something very similar from Panasonic. It covers a 25-600mm zoom range and will have all of the functions of a dSLR (manual mode, shutter priority, aperture priority, RAW format files, etc.) Really this camera will let you get the feel for shooting with an SLR without dropping $1,000+ on equipment.
Panasonic Lumix DMC-FZ150 Review: Digital Photography Review
After that, if you like shooting like that, buy a nice, used Canon or Nikon body (I'm a Canon guy and would recommend a 30D or 40D) and start accumulating a lens collection. Lens technology doesn't change rapidly which means you can buy used lenses and still be on the current tech. This is exactly the path I have taken and the wife and I decided that we loved it so much that, eventhough we are hobbyist, we easily justified buying 3 upper teir lenses and a top of the line flash. Once you get started, if you enjoy it, it really is a drug. You will start cutting things out in your daily expenses in order to save up for that next lens, or that better flash, etc.
Feel free to PM me if you want to talk about it in more detail. I've been right where you are and have went through the whole progression of steps.