360' Panoramic Photos

Does anyone have any experience using any of the 360’ panoramic photo lenses?
I have a Canon 350D and am looking at getting either a 0-360 lens or Kaidan 360 lens.
I’m really looking for any pointers from someone who has used one of the one shot lenses and compatible software to produce panoramic photos of interiors mainly.
Any tips with lighting for clear good colour shots?
Ideally any info which may be overlooked when buying the lens, such as extras that are required, and then any info on the software used to produce the image.
I know that the images are converted to QT or Java based images, but I would prefer to produce Flash images if possible.