Based on the Marvel Previews #70, August for October 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 #608
Amazing Spider-Man #608, 70th frame variant
Amazing Spider-Man #609
Amazing Spider-Man #610
Marvel Adventures Spider-Man #56
New Avengers #58
Spider-Man 1602 #1
Spider-Man: The Clone Saga #2
Ultimate Comics Spider-Man #3
Web Of Spider-Man #1
Web Of Spider-Man #1, zombie variant
Guest Apps
Marvel Zombies: Evil Evolution
Official Index To The Marvel Universe #10
Reprints
Dark Reign: The List - Hulk
Marvel Masterworks: The Amazing Spider-Man Vol. 3 TPB
Marvel Masterworks: The Amazing Spider-Man Vol. 3 TPB, variant edition
Spider-Man: American Son Premiere HC
Spider-Man: Death And Dating TPB
Spider-Man: The Short Halloween Premiere HC
Spin-Offs
Amazing Spider-Man Presents: Anti-Venom - New Ways To Live #2