All my portrait shots done "In Studio" are photographed in front of my 30'x20' green screen. Using the latest in PS software plug-ins, the ability to place my subjects on any background I (or they) chose is virtually unlimited. I have spent months perfecting the technique and I can honestly say I prefer this method to the standard muslin backdrop shots.

My other shots are standard, non-chromakey compositions.

CAMERA: SONY Alpha A-100 DSLR
PRIMARY SOFTWARE: Photoshop CS3 10.0 / Primatte / Ultra Key

NOTE: If anyone is interested in learning more about chromakey photography, drop me a note and I'll be glad to answer any questions.