What you're looking at should be good; if I was looking for a camera primarily for stills in the sub-$5k range there's a good chance I'd get a 5D Mk III or IV, although there are some other very good options out or coming soon from Sony, Fuji, Nikon, etc. I'm not thrilled with how Canon is treating the video side of those cameras if that matters to you, but for most people it should still be pretty good on that front too. As for lenses, primes are great and a 50 and 85 or 100 are very good options, but if you get high quality zoom lenses like the Canon L Series I don't think most people could tell the difference in the shots. Personally I'd probably get a 24-70 and a 70-200 along with a good 50 or 85 to go with the 100mm Macro I have (my only good Canon lens, but I know people with others). Before committing that much money though, I would definitely take a look at the stuff announced at Photokina and other fairly new gear to make sure you want to make such a big commitment to Canon. It's not a bad choice, but right now I'm not sure it's definitively the best choice either.