I recently purchased, a sony a200 and I'm looking to get some 'new' lenses to play with. I have the choice of buying a pair of Sigma 28-105 zoom lens, and Sigma 75-300 lens, or a pair of minolta AF LENS 70/210 MM and AF LENS 35/70 MM. I believe the 70/210 is the beercan which I hear a lot about for the sony. The sigmas provide a wider range of EFLs, but I not too fussed about this, and would rather purchase better quality. Note, I currently have the kit lens that comes with the sony a200 18/70 3.5/5.6.