Update:
A little more time with the first K200D and I could have saved myself some headache (and a few dollars) butI had to return it as my 14 day window was at day 14. Upon further comparison with camera #2 I have found the results to be virtually identical, which is to say, terribly innacurate but read on.
This time I dug a little deeper and found that, out of the box with default settings (bright) the K200D just takes horribly innaccrate, overly yellow/green photos. Those of you insisting things looked okay on your calibrated monitors, need to see these new results that show just how bad the dafault settings are for the K200D. To me, this is unacceptable, you shouldn't be ABLE to get results this bad much less have them be the result of a default setting.
To get the results I did today I had the K200D set to neutral with both saturation and hue bumped down 2 notches. The shot looks MUCH better, the grass now looks pretty much as it should and the trees look much more natural as well.
K200D #1, Aperture Priority, AWB (daylight), default (Bright) setting
K200D #2, Aperture Priority, AWB (Daylight), tweaked settings
Rebel Xsi, Aperture Priority, AWB, Neutral setting
There's no doubt these changes yielded much improved results, though in some regards I still think the Rebel is slightly more accurate if perhaps not quite as pleasing to the eye. In a couple of other comparisons between K200D and Rebel Xsi, I found the K200 yielded richer, deeper color with better exposure; the Rebel overexposed a lot of shots and also seems to have less dynamic range.