If you are really serious about photography then spend money on the body but if you just want to take nice pictures then spend the money on the fastest lens (smaller F number in the name) - any DSLR body will be more than adequate.
The glass is what makes the photo - the body simply gives you more options and control.
Also a zoom lens is convenient but a major compromise on quality. A good one is really expensive and a cheap one is terrible.
I have the Nikon D800 and a selection of prime lenses - the glass is good quality but to get closer to a subject I have to walk towards it. Because of the super high definition of the D800 sensor I can afford to crop the photos and retain the detail, but the cost of the lenses are significantly less than buying a zoom of the same quality. For example I have a 24mm F1.4 that cost me $180, a 50mm F1.8 for $120 and an 80m F2 for $140, all Nikon and bought used from eBay.
So if you are looking for an expandable system that you can grow with then the Nikon D5200 would be a great starting point and a couple of prime lenses.
If you want to stay with the convenience of the P&S but have more control over your pictures then I highly recommend the Sony NEX as others have mentioned.
However, the camera does not make the photographer - as you move away from P&S then you will need to start to learn about the science of photography (there are some great DVDs out there).