One of the easiest and most cost effective ways to produce multiple backgrounds from a single light source is to use photo gels. These handy little pieces of transparency can take a white backdrop from white to any color backdrop you can imagine.

Take it one step further and run a color transparency through your handy printer and you can get patterned backdrops. Ebay is definitely your friend on this one. I've listed a few of the better deals out there below:

Photo Studio 4 Channel Radio Remote Flash Trigger, FB4    US $29.00

Professional Flash Strobe Studio Lighting Photo Kit II    US $549.00

3 STUDIO FLASH/STROBE WIRELESS SOFTBOX LIGHT KIT 900W/S    US $399.00

Photo Studio 4 Channel Radio Remote Flash Trigger, FB4    US $29.00

780W Studio Strobe Flash Light Kit Trigger Softbox Case    US $440.00

PHOTOGRAPHY STUDIO KIT: Photo Lighting, Strobes, More!    US $321.19

PHOTOGRAPHY STUDIO KIT: Photo Lighting, Strobes, More!    US $321.19

NEW 540W 3 STUDIO FLASH STROBE SOFTBOX BACKDROPS MORE    US $283.95

430W STUDIO FLASH STROBE LIGHT KIT WIRELESS SOFTBOX !    US $338.00

320W Studio Flash Light (2 x 160W) stand Kit Umbrella    US $245.00