I have been wanting to upgrade to a full frame Canon for quite some time now and i think that leap is going to happen soon. I currently own a Pentax K20D and have actually been very happy with the Pentax brand. However since they don't make a Full Frame Camera im looking to Canon and have decided on the first generation 1Ds. The pixel count is lower than my current camera, however the larger sensor should make up for the difference.
Borrowed from internet