I'm shopping for a flash for my D5100. I know very little about the technical terms of photography. My experience is in photo editing/graphic design. I was getting frustrated with the professional photos of my baby girl - expensive/quality camera photos, but I personally thought they stunk because there was no style or creativity what-so-ever, so I bought a D5100 to create my own photos to work from. Greatest thing ever. Now that winter is almost here, I need an indoor flash & would like to get something that would allow me to add a few extra flashes for studio lighting (Christmas card photos, my nephew's 1st bday photos...). I understand the SB 910 will act as a "commander" and allow me to add some smaller flashes (like the Yonguo 560)? Is that correct? Another website seems to suggest using a pocket wizard, but then says it may not work? I'm so confused and just would like something simple and easy to use. Any help is much appreciated!!