Precision Shaft Technologies. They offer a wide variety, at a less expensive price than both NYX and Z1 (acording to their website, not AMZ's). I would give them a call and see how much they run. They are kinda local to me and I was going to check them out in the future, hence why I bookmarked this post. [ http://twinturbo.net/net/viewmsg.aspx?forum=general&msg_id=1850511 ]
Their price may be higher because its converting a 2pc. to a 1pc. I haven't actually contacted them about it because I don't have the money for it anyway.