[hajile]

ElectroVoice re20. The "variable-D" design helps you sound decent if you're not keeping exact distance from the mic. The builtin pop blocker is also quite effective.

It was designed so that if your interview target didn't have good mic discipline (most people don't have any), you'd still get a usable recording. As long as you're in a roughly 12" cube in front of the mic, you'll basically be fine.

If you're spending that much money and really want a headset mic, get a countryman and wireless set. You only need to reach a few feet, so a cheap analog system should work perfectly and provide way better sound quality.