Okay, so I am a simple music artist who wants to record music onto my iMac. I am currently using Garage Band and would like to upgrade to a more advance music recording program. Also, I am using a USB microphone and the sound quality is quite poor, and looked up some information on recording music using better microphones. Does anyone have recommendations on higher quality mics and how about to connect them to my mac? I also read that I may need an AMP connector for the mic. I plan on spending $500-800 on the equipment so any suggestions in that price range would be highly appreciated. Thank you.