Okay, I need some good, long glass (Nikon)... I've been been trying to decide on a few options: 1. The ultimate, the 400mm f2.8. Great lens, but pricey and restrictive. 2. The 80-400 - very reasonably priced, wonderfully versatile, but slow 3. One of the older lenses such as the 300mm f3.5; fairly long, fast enough, and I don't see a lack of auto-focus being a huge issue, but still restrictive. 4. A more verstatil setup like the 70-200 f2.8 with a teleconverter. Reasonably priced, and plenty fast on the short end, but slow with the TC. So, assuming that money wasn't an object (Okay, it is, but we won't go into that right now), what would your choice be, and why?