No competition - Olympus E620.
Live view with articulating screen (for low level macro). (Forget the Nikon D5000, with its weird implementation of live-view)
In body image stabilisation - for stabilisation on all lenses.
The only effective dust reduction system.
Small and compact.
Best kit lenses available, and unrivalled line-up of high quality lenses.
etc.
Olympus E-620 Review: 31. Conclusion: Digital Photography Review
Jim