I have recently switched from using my kit zoom to a P14 and O45. I bought these lenses based on an analysis of the most used focal lengths I used on the kit zoom. I have discovered, however, that I need something between the two extremes. I just got back from a visit with family I don't get to see very often and took several photos of small groups of people inside. The 45 was too long for this and the 14 resulted in very unflattering perspective distortion. So, it looks like I need a new lens. I have been considering the O17, the P20 and P25 and both Sigmas (19 and 30). Each has there strengths and weaknesses. Cost is a factor, which hurts the 17 1.8 and the P25 (otherwise I think my preference would be the P25). I had hoped for a faster lens than 2.8 which goes against the Sigmas and the O17 2.8. That leaves the P20. My concern is that it is not enough different from the P14 and I will still end up with perspective distortion. I am also concerned about focus speed as my daughter is pregnant and I am going to want to take photos of a moving toddler at some point. Although that time my be far enough in the future that a new lens would be possible if the 20 turns out to focus too slow. So, what recommendations do you guys have? Is the 20 long enough to avoid perspective distortion and wide enough to take small group photos inside? And how bad is focus speed? I'll be using it mainly on a G5 if that matters, but I also have an E-PM1. Thanks.