So let me 1st apologize for the annoying thread ... I'm sure I'll get flamed (or at least should be) but I just would like some opinions from people who know what they are talking about instead of my GF who took photos in HS and still doesn't really know what a "fast lens" means. Anyway, here is the situ... I just upgraded my 20d to a 40d and I'm looking for some new lenses (unfortunately on a semi budget). Here is what I currently own. Tokina 10-17mm Fisheye Canon 28-135mm IS (kit lens) Canon 50mm f/1.8 I shoot a lot of things but the 2 I actually make money shooting are Bands, both live and promo work and sports action shots (baseball, basketball and football mostly). I am first looking for a fast lens for the indoor stuff in low light situations as the live band stuff is really the majority of the work I do and a lot of my shots are from a close distance so the 50mm prime doesn't always do the trick. I have been on Canons website for about 3 days now and I've kind of narrowed it down to these lenses but would like everyones opinion on what might be the best option in addition to what I already have. Canon 16-35mm 2.8L or Canon 24-70mm 2.8L Then I'd most likely to have to wait till summer to get a 70-200mm 2.8L IS and a 1.4x extender for the sports stuff. I also considered doing a 20mm f/2.8 prime non L and get the 70-200 at the same time but I feel like thats kinda dumb cuz then I still don't have an L lens for the live indoor shoots. I dunno, just need some direction right now is all. Thanks for listening and your comments in advance (unless they are death threats ). oh 1 last question, on the 70-200mm 2.8 is the IS version really worth the extra $600 bucks? I'd almost rather have that to get a 1.4x or even 2x extender and have like $300 left over but if it really makes a difference then I'd be willing to do it.