Hi all, I've just recently upgraded to Nikon D90 (from D80), and all I can say thus far is that the upgrade was worth every penny! I have two lenses that I've been using with my D80 last 4 years, and I have to say I was extremely happy with them: Nikon 18-200mm VR, and Sigma 10-20mm DC. I was thinking of getting the additional lens as well, primarily for indoor low light shooting, so I was thinking of getting a faster lens that won't break my bank. Can anyone please suggest what lenses to consider that will compliment well my other two lenses? Thanks!!