Izzy,
I have 2 digital SLR cameras. I have a Nikon D40 and a Nikon D3100 I use them for clinical photography. I like SLR cameras and the 4/3 system. That being said, the Nikon1 V1 is next on my list. It has an extremely fast focus and takes great photos. It's not a high end professional camera, but it is a great camera. Google Steve Huff and look at his review of the Nikon V1.
If you want to go a step up, go with the Olympus EP-3. Maybe the best micro 4/3 out right now. Fuji has one coming that may set the bar higher, but have to see it first.