Recently a link was posted for making your own top-down pullover. I don't have the link handy since I'm on DHs pooter right now instead of my own. I haven't tried the pattern yet myself, but it looks great!
As for the seaming, I will do anything possible to avoid it if I can! I have a luscious pullover that I can't wait to wear, but it needs seaming, and I've been avoiding it like the plague!