Michelle,
yes, I see the purple fringing. It would bother me, too.

I understand what you mean about eating up CF cards -- I've just started shooting the 40D and I shot an indoor show today at ISO 1,600 and ran out of space on a 4 GB card right in the middle of BOB. I was shooting full RAW but, still, the 40D is only 2 mpx more than the 30D and I never ran out of CF space shooting candids of only one Breed when shooting the 30D. Guess I'm going to need to invest in some 8 GB cards!

Continued good luck with the equipment and keep the images coming.

Jim