How much post-process has been done on these pics? I'm seriously thinking of gettting the 100-400 IS - two things are slowing me down: money and the thought of lugging the extra weight - but I'd rather do minimal post-processing (raw conversion, white balance tweak, exposure tweak, a little sharpening, all done in C1). I really like your images, but if you had to do a lot of curves tweaking to those results, then the 100-400 is probably not for me.
Thanks!