I bought a Nikon SB-600 flash unit for my camera nearly a month ago. I'm loving it. I feel like a free woman now that I can take decent photos in low-light situations. When I say low-light, I mean practically pitch black. Really. Can I brag about it for a minute? I love this thing. Let me show you how awesome this thing is: I took these photos at my cousin's house at midnight. Each photo was taken from the same spot on the couch using the same settings. The above shot was taken without a flash of any kind. So sad. This shot was taken using my pop-up flash. It's not horrible, but it looks pretty bad. Right? It's still really dark. Now this is what I'm talking about!!! The above image was taken using my new flash pointed at the ceiling with a diffuser cap. WOW. Isn't it nuts the difference between this and the rest of the photos? I love my new toy, I just have to start working out my arms so I can better handle my giant camera/lens/flash set-up.