I suggest that you go for Canon EF 24-105 F4LIS and 10-22 EFS. One for normal shooting and the other is for wide-angle. Good luck.
Im looking to buy a Canon 30D. The lens which comes with it, the image stablized 28 - 135, seems to be quite nice. I was wondering though if either Canon or another manufacurer makes a better lens which would be compatible with this camera. For instance is there a 18 - 200 lens made which has image stablization?