I've bought a lot of software in pursuit of bettering my guitar playing. Band-in-a-Box, Neck Diagrams (and now Neck Diagrams II), Songs Pro, and some others I can't remember that are now consigned to the trash bin. My guitar instructor used Sibelius for his work, but he's a pro and it's worth the $$$ to him. I found and downloaded MuseScore, which is a free alternative, but as free/open source software, it's not really Mac-like. Every time I use it, I get frustrated and wind up quitting. Still, it's the closest I've found that does what I want it to. Which is simple: I want to be able to write a score with notes, tabs and chord diagrams. I'm not (yet) in need of multiple instruments or tracks, so how difficult can it be to find a piece of software that does this?
Enter TuxGuitar.
I'm embarrassed to admit that I'd heard about TuxGuitar a while ago, but given its name, I figured it was a Linux-only program. Whoops, was I wrong!
I downloaded a copy about two years ago and forgot about it. Scanning my Applications folder, I spotted it and since I'm trying to put together solo arrangements of some Christmas songs, thought I'd give it a whirl. Zowee! I have a (mostly) finished, printed out version of "I'll Be Home For Christmas" including all of the above, plus notes on fingerings, hammer-ons, etc. I am quite pleased. I found the software fairly intuitive, although it's got features I'll look into later. But for what I wanted, I got a very usable printout that I can now use to practice and memorize.
http://www.tuxguitar.com.ar/
Full documentation: http://www.tuxguitar.com.ar/tgwiki/doku.php