Originally posted by Hey Elwood There are a few reasons why I'm concidering switching. 1. There is a wider selection of lens for Canon. 2. I've noticed the exposure is much better with Canon. 3. Pentax has not produced a full frame camera yet. 4. Pentax flash units always seem to underexpose photos so I find myself having to a lot of post work.
These are just a few reasons.
3 is moot, especially so since you are planning on buying a crop frame sensor.
The rest are legitimate reasons in your experience. It doesn't seem you have too much invested in Pentax and it seems like you already might be sold on the switch. My only advice would be to save the extra money and get a 5d Mk II instead of the 7D, as it's very pricey for an APS-C camera.