I appreciate there is some debate about the merits of lens based versus cameras based IS. However, I do wonder if Canon are going down a damaging path in refusing to countenance camera based IS. Quite simply, lens based IS costs more and that is bound to have more of an effect as the recession bites. In particular I think Canon are being complacent about the extent of the extra costs. In the UK the equipment costs more in actual terms than the US and a lot more in terms of disposable income. For instance the difference between the normal and IS versions of the F4 70-200mm lens is $700 in the UK. Not so wealthy enthusiasts can get a Sony A700 for a bit less than a 50D and have IS on all lenses, including primes and mid-range 3rd party lenses. This is at least better than not having IS at all with Canon as it is not really affordable on anything but basic lenses, whatever purists may say.