Hey guys, I finally saved up enough to move on to the 5D Mark II. I already have a 24-105 L Series from my old 5D, and I also have some spare cash to play around with from selling the old body. I mainly shoot fashion and fine art portraiture, and I'm looking to get some advice as to what lenses to look into. The 24-105 covers most uses for me, and I'm quite happy with it. Please also keep in mind that I do want to get into videography as well, mainly to shoot people. I am considering getting the 50mm 1.4 and I'm also looking at the Sigma 24-70 2.8 (but is there any point in looking at that when I have the 24-105?). I know I definitely want a fixed lens that will get me beautiful bokeh and very shallow depth of field, but I certainly can't afford the f1.2 .I've got roughly $900-1000 to play around with. Suggestions?