I have the 50mm 1.8 and the 85mm 1.8 and love both of the lenses. The 50mm 1.8 is everything you hear about. It's cheaply built, costs next to nothing as far as lenses go (about $75) and it takes fantastic shots. For the price, I'm not so concerned. If it lasted a year it was worth it. I considered it a disposable. I've had it for almost 2 years now and it's still going strong. I bought it used, along with the 85mm from a guy in Florida. I think he'd had them for a couple of years when he sold them.
I also have the 17-40 F4L. And I'm in love with that lens. It's on my camera 90%+ of the time. The next big lens purchase will be the 24-105. And I saw it on a 5D at Best Buy a couple of days ago for under 3K... I'm itching to get it, but trying to stay married. Comming home with a new 3K camera wouldn't go too for to help in that department.
