I have recently began looking into purchasing an external mic for my Sony HDR-SR11. The camera uses a miniplug, although I have found some adapters for XLR. I really have no preference as to the mic being on-camera or on a boom pole, but would prefer if it could be adapted for both uses if needed. I am looking to spend a maximum of $250 (200 Euros) on the mic, although I may be willing to spend slightly more. Currently I have a wall in my garage that I am using for blue screen work. I am looking to record primarily clear voices and eliminate background noise. The garage has quite a bit of echo, which is especially noticeable with the built-in microphone. I also film short movies inside my house where the echo is noticably less. Therefore in both locations my goal is to pick up good, clear voices. Also if possible it would be nice to be able to use the mic for some outdoor shots. However, I realize this may be asking too much from one microphone.
Also, come someone please explain what phantom power is in simple terms, and if it has any effect on my decision. I have come across this term and am not familiar with it. All I know is that under the mini-plug input on the camera it says (PLUG IN POWER).
So my question to you all is...
In this situation what microphone in this price range would you buy?
PS. Please let me know if you need me to provide any additional information.