I know I'm a little over a year late, but I'm up late and bored.
As far as Garageband goes, I highly suggest the Line 6 Gearbox. Its $70 and has a ton of great amp sounds and effects. I'm sure you've already got a set up, since I'm a year late, but whatev. haha. Its good stuff. Its basically a POD, but software based. you just plug your guitar into the thing, and pick it as your input in garageband. boom.
"Some men can't be bought, bullied, reasoned, or negotiated with. Some men just want to watch the world burn."