Be aware of the fact that by creating a laundry list of resources, there are higher chances that u will stray from a well defined, focused approach. Remember it is not about how many different books you have read or how many questions u have done. It is about how you have developed/honed your skills. I wud recommend a relatively shorter list.
workbooks --> In case you need to rehash fundamentals.
2. Princeton review
---> Just for CATs and practice sets
GMAT 2005/2006 ---> For CATs, practice sets and startegy for
diff types of questions.
4. Manhattan GMAT
---> SC guide only, haven't heard good things about
CR and RC. Also noone can teach u how to ace CRs and RCs through
some bullet points. They require practice and inherent skills.
5. Official Guide 11th edition ---> A MUST BUY ! I don't think
supplemental books are that helpful, but I might be wrong.
Avoid KAP 800, personally I thought it was not worth the money, lot of repeats from KAP's 2005 book and bunch of other BS that you don't need.
Remember - Focused Approach !
Good Luck !