I want to get a good desktop microphone for use with Skype, movie voiceovers, video tutorials, and so on. I've tried various low-end "computer" headsets and mics, but they're lacking the quality I'm looking for. I'd like to go with a nice Shure mic like the PG48 or SM58. As I understand it, I'll need a desktop stand, XLR-to-Minijack adapter, and some kind of mic amp in order to have it work with my Intel Mac Mini. From what I've read the Mini doesn't have a mic amp. Can someone confirm this and recommend a good setup for me?