So this afternoon I picked up a Nikon D800 and the 50 f/1.4 G and the 85 f/1.4. I've got an OM-D and most of the trimmings (20,25,45,60,75,12-35, HLD6), I absolutely adore the system. Unlike a lot of the old... er experienced photographers on here who grew up on *SLR systems, I just got into photography in the past few years, going from point and shoot to advanced point and shoots/zooms to a E-PM1 with a 20 to the where I am now, so I thought it would be kind of interesting to share the perspective of a mirrorless user going to dSLR instead of the usual vice-versa. That's not to say I'm planning on giving up my OM-D and m4/3 glass though! This is in addition to that. My first impressions, are a) I miss the heck out of the EVF and b) The DOF is too damn narrow at the apertures I would like to shoot at in low light conditions with a reasonable shutter speed. I guess I can up the aperture and crank the ISO a little more on the D800 though as the high ISO performance should be improved, but that will take some getting used to. On the positive side, I have a fast laptop and very fast desktop, so the filesize doesn't seem to be a real bother. Storage is cheap enough these days. Also, at a 100% crop, there's still a great amount of detail in these. I *try* to compose exactly what I want, how I want it in the frame, but to be honest with you, I often end up cropping a little, and once in a while I end up cropping a lot. This certainly gives the ability to crop a lot. As far as ergonomics and such, I've taken thousands of shots with my OM-D and am very comfortable with its operation. The D800 seems awkward right now, but that's really not a fair comparison so it will have to wait.