Hi guys, first of all I wanted to say that I am new to this forum, and this is my first post, so, bear with me! Second of all, I am going to buy my first compact interchangeable-lens camera. I've never even owned a DSLR, but for my price range (I'm only 17, so my budget is tight), I'm wanting to buy a used compact camera system. The three that I am deciding between are the Olympus Pen E-PM1, Panasonic GF3, or Sony Nex 3. I need someone's opinion who owns one of these and can testify as to how much they like it / don't like it. I do know that the Nex 3 has a larger sensor (APS-C) while the other two have a micro-four thirds sensor. Would that really make a difference? Thanks for your help. I appreciate it so very much!