Regarding the SD slot....I think it is an attempt by Canon to lure folks over from the point & shoot crowd into this level of DSLR.  The concern has always been...."Oh...I already have SD cards so I won't buy a CF camera"...pretty poor logic seeing that memory has become so cheap these days.....

Almost the same as cramming (now) 14 MP into a P&S size sensor....More MP is what the market wants.....they think it is better than an 8 MP camera....but it comes with inherently more noise...at least so far....

In youth, we learn....with age, we understand.