I recently purchased a new Canon EF-S 17-85mm IS USM lens along with a UV filter from these guys. Their prices were the lowest of any retailer I looked into. In fact, my local camera shop was selling the same lens, but used, for the same price as 42nd was selling it for brand new.
Their service was also fantastic. A day after I had placed my order I received a phone call from someone there regarding my order, and a suggestion that I use a different UV filter with the lens. He also asked when I needed the lens by, and it arrived a day early.
Overall, I was very satisfied with my purchase.
more