So I have a few lenses for my a300: -18-70mm f/3.5-5.6 Macro Sony kit lens -28-70mm f/3.5-4.5 Sigma lens - I bought second hand on a complete whim but for about £20 on eBay. -50mm f/1.7 Minolta prime lens - bought second hand from Adorama. Easily my favourite lens and stays on there near permanently. -55-200 f/4-5.6 Macro Tamron Now, the last time I visited NY (will be moving there in May), I found myself needing to drop down and go up from my 50mm when taking photos of buildings/landmarks and for street photos. Also I took the 18-70 into a Mets game with me, which struggled when shooting players, but was ok for the stadium shots. With the lenses I am moving between, I figure that I definitely need the width of the Sony and the reach of the Tamron. I noticed that there is a Tamron 18-200 f/3.5-6.3 (new) for around £160. Should I try to sell the 3 zooms for this? I would love to have something really wide, but they are just way out of my price range. The 50 is wonderful for portraits and for photos of my nieces and nephew so is going to remain a fixture. Just a superzoom seems better for me as a walkabout lens. Any opinion?