I would not discount the D90 simply because it's an older model. Prices are excellent right now -- especially if you can get it bundled with the 18-105VR lens, which is a fine all-round performer in its own right.
The predecessor D80 is a very good camera, and many photographers are getting great results with their Canon 40D -- which is two models older than the recent 60D.
Remember, it isn't the camera that takes the pictures, it's the photographer.
Olympus e-620 / 14-42mm / 40-150mm
Metz 48 AF-1
Kata 3-N-1 20, LowePro Orion Mini, LowePro Nova 2