So my advice to you is: don't flit from one camera system to another just because it may be slightly ahead technically at the moment. As sure as the day will dawn tomorrow, the manufacturer of your present system, if its cameras or lenses are behind the cutting edge of technology, will attempt to leapfrog technically over the others -- and again the SLR grass will look greener where you aren't. And being at the forefront of technology isn't always as exhilarating as it's cracked up to be either. My older cameras, sneered at slightly by my friends, have some features that the newer ones don't. And familiarity with what I do have breeds contentment.