Based on the Marvel Previews #71, September for November 2009, I'd say you need to pre-order the following books in order to keep up with Spider-Man.
Core Titles
Amazing Spider-Man #611
Amazing Spider-Man #612
Amazing Spider-Man #612, 50/50 Granov variant
Amazing Spider-Man #612, McGuiness variant
Amazing Spider-Man #613
Amazing Spider-Man #613, villain variant
Dark Reign: The List - Amazing Spider-Man
Dark Reign: The List - Amazing Spider-Man, hero variant
Dark Reign: The List - Amazing Spider-Man, villain variant
Marvel Adventures Spider-Man #57
New Avengers #59
Spider-Man 1602 #2
Spider-Man: The Clone Saga #3
Ultimate Spider-Man #4
Web Of Spider-Man #2
Guest Apps
Assault On New Olympus
Incredible Hercules #138
Ms. Marvel #47
Official Handbook Of The Marvel Universe A To Z Vol. 11 Premiere HC
Official Index To The Marvel Universe #11
Reprints
Amazing Spider-Man By JMS Ultimate Collection Book 2 TPB
Deadpool Classic Vol. 3 TPB
Spider-Man: Died In Your Arms Tonight Premiere HC
Spider-Man: Died In Your Arms Tonight Premiere HC, Alex Ross variant
X-Men: Worlds Apart TPB
Spin-Offs
Amazing Spider-Man Presents: Anti-Venom - New Ways To Live #3