Hi all, I recently purchased an OM-D body and a Panasonic 20mm 1.7. Great general purpose, walk-around setup, but I'd like to extend that very soon. This recent purchase did put a big dent in my wallet, so I'm trying to be a little budget conscious. I'm looking for an addition that will give me a (relatively) well-rounded BEGINNER's setup without breaking the bank. To add to that, I don't feel like I need (at least for now) anything shorter than 20mm. I'm specifically looking for longer lenses in this case. So... Would it be better to A) take baby steps with another prime lens, such as the Oly 45mm 1.8 then expand the collection slowly? Or B) go for an affordable, versatile zoom, like the Oly 40-150mm (or comparable Panasonic)? or C) any other suggestions? I do like the fact that option A gives me a chance to slowly expand my collection with good, fast lenses... but B seems like a much more affordable way to cover all bases (or at least most - in terms of focal range) almost instantly, and it's difficult to just ignore. Sorry if this has been discussed ad-nauseum before.