Erik,
I agree with Greg about going with one system. Either system! Just let me add my "personal" two cents worth. You know which system would be best for you.
I just want to say that when I switched from Canon dslrs I thought I wouldn't be happy with the micro 4/3 system. However, I have been really happy these past few years, and I don't miss Canon anymore. One thing - I've been careful how I choose my lenses. It makes all the difference! I own some really nice m4/3 lenses. Some I got refurbished or used due to budget. Some I got on big sales. Some I just spent a lot of money on!!!!!!!!!!!
Good luck! This is a fun - but challenging decision to have to make! Keep us updated! It's exciting!
Liz
Liz