Actually, the reason I came back here this morning is that I remembered something I read in a book of interviews with recording engineers and performers when browsing in a bookstore recently about how to capture the 'golden moment' .
In his interview, Keith Richards mentioned that the way they got the guitar sound in Street Fighting Man was ... okay, are you ready for this? ...
He said that he had tried everything, and nothing was working for him.
So he played an acoustic guitar into a little portable Phillips cassette recorder and recorded it. The guitar so overpowered the little tape recorder that on playback it sounded ...
... perfect!
So they mic'd the little Phillips tape recorder, and that was the rhythm track around which they built the song.
So the answer to the question, "How do you record a professional guitar sound?" is:
Try everything you can think of, and go with whatever works for that song.
--thndrsn