I'm pondering a fisheye lens but i'm not sure that I would get £300-400 worth of use out of it to plump for a Sigma or Canon. I've seen some wacky looking Russian manual efforts on eBay but they're fully manual which grates with my professionally lazy attitude
Any thoughts or should I just try and get some work done rather than surfing for things I don't need?

Any thoughts or should I just try and get some work done rather than surfing for things I don't need?