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The Sigma 85/1.4 is amazing for the price. So is the older Nikon 85/1.4 AFD. The newer Nikon 85/1.8 G is also an excellent lens.
If you want a wide prime, the older Sigma 24/1.8 was a lot of fun in my kit. Not as sharp as the Nikon 24/1.4 wide open, but about 1/5th of the price!
I could shoot a whole wedding on just a pair of D700 bodies, a pair of SB-900 flashes, the Sigma 24/1.8 and the Nikon 85/1.4 AFD.
The 70-200/2.8 VR1 was also a must-have lens for weddings, and fantastic for portraits and corporate events, and though it was very flexible, it's only f/2.8 in low light, and it's much much bigger & heavier than any 85/1.4, 105 f/2 DC or f/2.8 AFS VR, or 135 f/2 DC.
The Nikon 105/2.8 VR Micro was a good lens in my kit too - it had a very different (almost dream-like) way of drawing a scene that stood out next to any 85/1.4 or 70-200/2.8 I've ever used, and Macro always came in handy for things like ring shots, table settings, etc at a wedding... but for some subjects (i.e. women of ANY age, or guys who are self-conscious about wrinkles, acne, or every single skin pore showing up in the shot), it proved to be TOO sharp, especially on high contrast subjects like folks with freckles. Be ready to use a lot of adjustment layers in Photoshop to soften the image for picky clients!