1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 cxd6 6. Be3 g6 7. Nc3 Bg7 8. Rc1 0-0 9. b3 is a fine line. I think after the old main line 9...e5 white gets an advantage. As pfren has pointed out before, the critical test is Bf5 instead.
Are you trying to prepare for Alan Auman? :)
The Alekhine often throws me off in terms of my regular opening repertoire,
what are your guys' pet line against it?