O.K. Here's the Story. Around Christmas this year I will have about 5K to spend on equipment. I shoot a lot of sports, I mean a lot. I had an older 300 f2.8 non IS that I purchased and focus was not great so I sent it backbut noticed that a single focal length lens is limited compared to my 70-200mm zoom. Another difficulty is that a lot of sports are at night and I frequently (read always) shoot at f2.8 and 3200 iso for a 1/400 shutter speed which is frequently underexposed by up to 2 fstops depending on the field or gym. I currently have the aforementioned 70-200mm f2.8 L IS USM lens so 80% of my needs are met. I have a 17-55mm f2.8 IS USM lens and a 50mm f1.4 lens; I have a 40D, 1D, 1D Mark 2n. So my problem isthis, It would be photography dogma to upgrade the Lens with an Uber Telephoto as mentioned above and with the $500 rebate the 200mm is only $4800 dollars until January but High ISO is my bane. I would love to have another 2fstops of light with the same noise performance and with 16mpix on a 1.3 sensor and easily 12,800 iso on the Mark IV I'm thinking upgrading the camera body may be more beneficial than getting a Faster telephoto (though I would like to have both).


What should I get. 1) 1D mark IV 2) 300mm f2.8 with 2x extender (already have 1.4x) 3) 200mm f2.0