I have found new video editing software that i am buying called VideoWave 5 Power Edition. It has an editing feature called Video Mixer, and in this video mixer, you can select the option of removing color from your video. So you film in front of bluescreen, remove color, and then put in another backround. Its sounds pretty simple and powerful. Im gettin it this week so ill post back on how it is. The website for the software is: http://www.roxio.com/en/products/videow ... ndex.jhtml
I used to use an older version of Videowave and I thought it was pretty good. I haven't turned back since getting Adobe Premiere to edit with but depending on how far Videowave has come it should be a good buy.