1. Do you have a guitar now? If, so what kind? Ibanez (that are cheap) can be a very good beginner guitar. I would say that it'd be alright if your short on cash, or if you might not want to play guitar down the road.
2. Great Move! there are a variety of effects and recording softwares you can buy for it. It's a great resource to use, but don't crank it to loud, you don't wanna blo those speakers.
3. I've always found that reading music is valuable. Although these days, everything is being transferred to tab. Being able to read music lets you play many different styles, plus you can transfer stuff onto guitar. But if you really don't wanna, at least know the names of the notes on your fretboard, even if you can't read it off paper.
Good luck man!
There are only two important things in life - There's music and theres girls, not necessarily in that order....
The Ace's Guitar Tricks
The Ace's Guitar Tricks