Agreed - but I would recommend a pancake lens (Lumix G 20mm F/1.7) as your allround lens. Extremely fast and great at low-light situations (indoor pictures!). I use this with my GH2 - a camera I can highly recommend, very versatile (lighter and smaller than your DSLR), very fast and a great picture quality. In most cases the pancake lens will be your best friend, with a decent zoom lens for when you really need it.

So Steve knows how to look at history and learn from the best. Clearly a business book waiting to be written!