This Australian-made Rode NTG-3 microphone ($699) seems extremely well-placed for its price and performance. Like the Sennheiser 416, the NTG-3 is an RF-condenser unit that combines a somewhat sophisticated RF circuit with the capsule to reduce the deleterious effects of high humidity. It's tricky to design, but worth the effort. That design element has contributed greatly to a "bullet proof" reputation for similar mics and should do the same for the NTG-3.
The RF environment is growing significantly more hostile, though, and Rode seems to have taken shielding a bit farther than some other manufacturers. Attention to the mechanical and electronic layout of the NTG-3—including the surface mount technology (SMT), PCB layout, component selection and dual chamber design of the internal brass tube that appears to separate most of the circuitry from the tunable RF section and capsule—all contribute to RF immunity and mic performance.