For my wife's 30D (since I upgrade to 7D ...so this older one is hers now ....yeah ..) Been looking around for something from wide ( around 15mm) to telephoto (arond 200mm) with some kind of image stable system ....
Tamron 18-270mm/3.5-6.3 Di II VC LD Aspherical (IF) Macro
Sigma 18-200mm f/3.5-6.3 DC OS
Tamron 28-300mm f/3.5-6.3 XR Di VC LD Aspherical IF Macro (This is a bit short on the wide end...)
try to dig around , but can't find too many reviews on them ...