Do you have some flat knit patterns you want to convert? The basic idea would be to cast on enough for the front and back, then work in the round to the armholes where you'd work them flat with the same shaping. The shoulder seams can be done as a 3 needle BO. If there's sleeves, you can pick up sts around the armholes and with short row shaping knit the sleeves in the round too.
sue- knitting heretic