I'm looking to step up from a P&S, and I'm considering a m4/3. I'm looking at either the GH2 or possibly the E-PL2. I'd mostly be taking pictures of kids (little fast moving ones!)/vacation--enlarged no bigger than an occasional 8x10. I guess I should first be asking if a m4/3 is the right tool for the job over a DSLR. Also, the specs on the E-PL2 show no AF assist lamp. How important is that? I would be taking pictures in low light at times. I know no one really knows how the E-PL2 will perform, but in the meantime just generally speaking, I'm wondering how important it is (should I rule it out as an option). Thanks!!