All great suggestions. Before you get too far down the road of learning tunes you should sit down with a good solid "boom-chuck" guitarist (someone who plays a base string on the downbeat and a strum on the off-beat) and work on a tune you both know mutually. You may find, like I did, that your intonation is good but timing lousy. Practicing alone won't improve your timing. You've got to play with someone, and make them hold the beat at a steady tempo! Most new fiddlers have a tendancy to speed -- a good guitarist will hold you in the groove. It can drive you crazy at first, but ultimately you'll learn to make the bow strokes the right length for each note. I was so depressed with timing at one point that I threw my fiddle under the bed for four months and played other instruments (banjo & guitar). Some people suggest a metronome but I found a good, patient guitarist to be better at the start. Sometimes you have to bribe them !