The yarn is Kauni, from Denmark, in the colors EQ and ES on US4. Yes, the sleeves are 3/4. It seems that I am always pushing my sleeves up, so making them short means that I can keep them out of the way. I finished on the way home from Stitches West. I found the buttons there, but can't remember the vendor's name: she sells plastic resin hand made buttons that are machine washable and dryable. NOT that this sweater is ever going near a washer and dryer. Anyway, the original pattern is called 'Ruth's Kauni Cardigan', but I used an Alice Starmore pattern called 'Rosemarkie'. Had to do some math, as Ruth's original pattern wasn't big enough for me and to fit in the Starmore patterning. Overall, I'm pretty pleased with the finished product and it was a lot of fun to knit.