Okay so you bought a digital SLR camera and a kilo or 2 of lenses 
and got all geared up. Now the real fun and learning starts. Here are some suggestion I think you should start to investigate. They have helped me greatly when I bought my Canon 30D + lenses.
In order of preference:
- Read the camera’s manual completely and reread it every 2 months.
- Learn how to hold your camera still while taking pictures.
- What does ISO speed do? [ISO 1]
- What does aperture mean? [Aperture 1]
- What does shutter speed mean? [Shutter speed 1]
- What does the TV, AV, P and M mode do?
- Differences between RAW and [jpeg] [Tutorial 1]
- White balance [Tutorial 1]
- Crop factor [Crop 1]
- DOF: Depth of field [DOF defenition] [DOF 1] [DOF calculator]
And in the post processing area:
- How to setup a workflow
-
Sharpening [Tutorial 1] [Tutorial 2]
- How to store your photo’s online (as display and backup) [Flickr]
Websites to read that will help you get started, and advance quickly
- photo.net [EOS Forum] – [Building a DSLR system]
- Digital Photo review [dpreview.com]
- Canon [Digital Learning Center] – [Lens works] – [Using Image Stabilizer lenses] – [Flash work] – [Macro]
- Photozone.de [Highly regarded Camera and Lens test review site]
