I just clicked purchase on the Nikon 24-70 f2.8. Even though I know I won't regret it, please reinforce that fact to me. Less than 2 yrs ago I had the same feeling on purchasing my first $600 lens. It was killing me not having a fast zoom in weddings though. As much as I like the primes, sometimes you just can't move to get in there where you need to. My husband may kill me too. I confessed, but thank god we have seperate checking accounts! I looked over and over at the Sigma, but where it fell short were the places that I couldn't risk not performing in. Hopefully it pays for itself soon! So, my 35mm and 70-300 are for sell for anyone interested!!