Thanks for the comments, everyone!
caledonia_mission - I wish I could help with your math there but I'm too much of a newbie knitter. But the yarn you're using is lovely, I can't wait to see what it looks like with in this pattern!
Just A Girl - I'm actually using the Debbie Bliss Merino Chunky from the pattern - I found a great deal on ebay in the UK before I even got around to looking for a good substitute.
bijou_raoul - That sucks about your yarn!
I hope you can find a decent substitute for what you originally wanted.
The body on mine is finished and I bound off last night. But I did it way too tight so now I have to take out the bind off and do it again. I only learned to knit a little over two months ago, so I'm still sorting these kind of things out - at first I did bind offs really loose and my ends looked all wonky but apparently I've gone the other way completely now.
I'm going to try and fix it right now.
Then I have to go on to the sleeves! I have a question though - when I asked about the gap under the arm, a couple of you said to pick up a few stitches and work them into the decrease pattern. I have to admit, I don't really know what that means! I've never picked up stitches before but I can figure that part out - what do you mean by 'work them into the pattern'? Does that mean just count them in as part of the sleeve and decrease the way the pattern says, or do I have to do something special since I picked up extras?
Thanks for the help, as always!