After reading a lot of good reviews, I have decided to purchase the lenses stated below. I have been doing a lot of portrait photography with freinds and family and have now felt the urge to try something different. I would like to cover some out door, nature, wildlife, sports, and landscape photography and have summed up the following for my needs. Sigma | 100-300mm F/4.0 EX DG IF HSM Autofocus Lens | 134306 Sigma EX 10-20mm f/3.5 EX DC HSM - Review / Test Report I like how the both of them also accept the same size filters at 82mm as well. My budget is about $1500, but flexible if needed. Any final thoughts before I hit the checkout button? I'll likely purchase them by Monday so adding your 2 cents would be great! thanks!