[quote=RomanJohnston]Schlepp it in the morning, schlepp it in the evening and avoid the mid day like the plague.
Amen to that - though I completely hear Dave's point. When Chanthee and I were in Vegas visiting Steve (going for a wedding), it was 108F on the Vegas Floor. It was pretty ugly. Having said that, I now carry the Oly Pen for that very reason. It allows me to have a camera at all times. It does not replace my 5dii, but it is nice to have around.