My standard lens on my Canon 20D is the Canon EF 17-85mm lens with Image Stabilizer. I found this lens to be just a great all around lense and it is designed more for the Digital SLR series. I have yet to see much use of the image stabilizer however I suspect you would notice more on Macro shots. Coupled with my Canon EF 70-300mm f/4-5.6 IS USM telephoto zoom lens, I am able to just carry two lenses when away on trips, making my camera bag a bit lighter.
