Still testing waters with :43: but used regular 4/3 for years,
some pics with 'ole E1 here, glad for your feedback. Anxious to see what the September Photokina has in stock for the system.
I can understand a bit of reluctance and uncertainty as you consider the shift. I've been exceptionally pleased with the E-PL1, it's 14-42 kit lens and the Lumix 45-200 lens. (I still have my E-1. E-3 and 2 E-410s for similar thoughts, although I'm ready to part with 3 of them now. Yes, my gripped E-1 may be destined for a new home, ouch.)
Depending on which m4/3 camera you get, you could continue to use your current 4/3 lenses, using either the Oly or Lumix brand adapters. I have the Lumix one and the E-PL1 works fine with my 4/3 Oly lenses and my Lensbaby Composer.
Anyways, welcome to this forum (the best and friendliest) and good luck with your future purchase.