Pat Petrillo has got a new book out about reading.....i guess you should check that one out
Actually it is a DVD: Learn To Read Rhythms Better (2011)
It also features one of LGMs own... degreed middle & high school music teacher, Guitar Center Drum Off Finalist, Juan Carlito Mendoza whom is also a student of Pat Petrillo so Go Get It
NOTE that this is not a how-to on reading drumset charts or multi-line music but a a lesson on HOW TO READ (Count) RHYTHMS
Just so you get the right thing for what youwant to learn. This is the best place to start because if you cannot read rhythms on a single line then you will be lost when you try to figure out the placements of the different instrument voices of the drum set on the music staff .
http://www.amazon.com/Petrillos-Learn-Read-Rhythms-Better/dp/B004MZ492E