MFT system recommendation

I am a owner of a now broken LX3 that is looking for a replacement. It will be my only camera. DSLRs are out of the question due to size. I just wouldn't carry it so much or I would have to buy another smaller one.

I am a novice photographer but I do understand manual controls and want to learn more.

I shoot:

• My kids.

• Landscapes

• The occasional macro

• The typical travel photos

• Video is important also

So far LX3 has served me well but I want to take this opportunity to improve on:

• Still and moving objects (or better kids) in not very well lit situations. No real action photography, mainly indoor photos of kids that do not sit still. LX3 was not enough. Too noisy above ISO400 and many blurred photos. Solved partially with a small bounce flash but would like to do better.

• better video

• Shallow DOF for portraits

• Some more reach.

• do not sacrifice macro and wide angle that served be well in the LX3.

Options I am considering:

• A mft system, mainly G3 or G5

• A NEX system, F3, 5n or whatever new comes out in Sept

I have no doubt an mft or a NEX can do all I want, but from what I've read I would need more like 2000€ (kit lens, macro, telephoto, fast portrait for shallow dof, wide angle)

But my price range is more like 1000€, $1200. I mean for lenses, flashes and everything.

Can it be done? If not, then back to LX7 or RX100 I suppose.

Thanks, nikos.