Here's the problem, I have a Sigma 70-300mmlens and it's fast becoming my walkabout lens over my Canon 28-105mm, doesn't sound like too much of a problem yet eh! The thing is that I have shakey hands and anything over about 150mm has some pretty noticable bluring resulting in lots of ruined shots which should have looked good (well, maybe not but at least they would have been blur free!). Basicaly I'm loosing about 50% of my shots to this at the moment so Image Stabalisation is a must for any new lens, I want one in the same focal range, around 70mm at the low end and at least 300mm at the long end. Now the real crux of the problem, I'm not a rich man and I can only afford £300 MAXIMUM for a 70-300 IS lens, does anyone have any suggestions on what I should get/where to get it from? Is this asking a bit too much for the amount of money I've got?