For the crowd who can afford anything, I'm sure this question would be an easy one. BUT, I am on a budget. New dad, new car, tough job, etc... puts me squarely into the spend little category. EDIT: budget is $500 or below... Just purchased the OM-D coming from the PL2 and D90. I have: Panasonic 14/2.5 OLY 12-50 Minolta MD Rokkor-X 50/1.4 (LOVE!) Several slow 135's from ebay. What lens would you recommend for the next? I mostly shoot portrait work with my son, landscape for hiking in the Cascades, and travel/street for an upcoming trip to Romania. I lean towards something fast like the 20/1.7?