I have a Nikon D80. I take tons of pics of my kids. This year I want to take their Christmas pic using either a Chroma Key background or a mottled beige background. I have tried the Chroma Key and I am not happy with the lighting from my Nikon Speedlight SB-600. I would like to buy two Photo Umbrellas, but I don't want to spend $1000 on them - as I only do photography as a hobby, not a profession. I saw a pair of Square Perfect SP2700 photo umbrellas on Ebay for about $50 (although the auction has not ended yet). I usually buy all of my equipment from B&H, so I am unsure of this purchase. The real question is, what to buy?? Any suggestions on one or two photo umbrellas that are inexpensive but not "cheap" in quality? Again, I don't want to break the bank on this one, just get some cute shots of the kiddies. Any/all suggestions greatly appreciated! Thanks!