I have one which I've used with my old 300D.
VERY good lens, relatively light, brilliant picture quality.
My only problem is that on the Canon mount, it is EF-S, meaning that it won't fit on my new 1D. Talk about gutted. The lens is only a couple of months old. Put mine up in the FS section on here, though clearly that's bugger all use to you.
For other reviews, check the Fredmiranda website, where it gets a LOT of positive comments.