I never heard of anyone complaining about Leica Ms being too small. With 35mm I made a lot of use of a Rollie 35S and a Contax T which were both comparable with digital compacts. We now have a range of DSLRs from the Olympus 410 through to the Canon 1Ds. They are different beasts. The Canon is essentially a replacement for a medium format whilst the Olympus is a replacement for a SLR.