Nice expensive cameras and lenses are really desirable, you are reading the blog of a professional photographer. I've gone hungry to buy kit before. But we all have to be practical most of the time. Many of us don't use anywhere near the quality that many of our cameras provide. This includes me. I retouch huge files at 600 meg for them to be only put online at 800 pixels wide.
I'm not saying it's all a waste of time. I'm merely suggesting that I may be able to save you some money on your next DSLR camera purchase.
We all want the best camera we can get but sometimes there are other factors that may persuade us in another direction. I myself shoot on Nikon but didn't buy the very top model at the time. My issue has always been weight, the slightly lower end of the pro cameras market are a lot smaller. For someone that mainly requires heavy zoom lenses (28-70mm G ED and 70-200mm G ED) and mainly shoots handheld, it's a great way to save on a bit of weight, and some cash in the process.
When I made this purchase there was a bit of difference between the file sizes but most of my work only goes up to A0 poster size at an absolute maximum, and if a job came in that needed super sized, hi-rez's then I would hire the right camera for the job anyway.
If you're only printing your files on rare occasions to A3 then you could probably do this with just about any censer in your camera. You would be wise to put less money in the camera body and put more into getting good lenses and the rest into printing. Weather thats you or decent lab.
Obviously you need to read and compare the specs when you're ready to buy. Some sensors do handle noise a lot better than others. But essentially they are all really similar black boxes with a shutter and sensor. Don't get bogged down in fancy settings or gimmicks that you won't notice.
Coming soon - What digital camera should I buy.