things to consider that are good Arc
* Excellent photo quality, even at high ISOs
* Full manual controls woo hoo
* Robust performance, especially in terms of continuous shooting snap snap snap
* All the expandability you'd expect from a D-SLR
* Advanced white balance controls
* Excellent battery life (always a winner)
* RAW, RAW+JPEG supported
* No redeye (praise the lord)
* Support for EF and EF-S lenses
* USB 2.0 High Speed interface (of course)
* Impressive software bundle (though DPP could be better, at least on the Mac)
*Slightly lower noise levels at high ISO settings
*Slightly better autofocus, more AF zones.
* ETTL-II capability
* 5 fps vs. 3 fps on the 10D Canon
* 29 frame JPEG buffer (not bad)
bad:
*you cant run over it in your car without ill effects
*it wont cook your breakfast
*it can't say I love you
*oh and the default image sharpness is a bit harsh for most conditions.
*may be considered outdated slightly, but still great for the money