Hi score780,
You have a nice collection on books!! As the others have said, it would be good to concentrate on the most commonly used ones especially if you are looking to take the test in a 3-4 months. Having said that, I have been working on a plan of study with some of the books you have. You are welcome to use this as a guideline.
Phase 1 - Pre-GMAT preparation
Doing Grammar/Kaplan GMAT verbal foundations + Powerscore SC Grammar review (upto Page 52)
MGMAT Foundations of Math
Phase 2 - Learning concepts
Quant
5
MGMAT quant books in the order 1 - 5 as prescribed.
Cover the gaps in these (as mentioned by DanaJ in her amazon reviews) with additional material from this forum/internet
a) Geometry - Overlapping shapes, angles within circles, tangent to circles, trapeziod, polygons with 4+ sides
b) Probability & Statistics - from Veritas guide
c) Arithmetic & Geometric Progressions
d) Digit and symbol problems
Practice with Veritas books, forums and
MGMAT online question banks
Verbal
SC -
MGMAT SC guide - study
CR - Powerscore RC bible - study
RC - LSAT RC bible - study
Practice with Veritas books, forums &
MGMAT online question banks
AWA -
Read up templates
Phase 3 - Practice
OG 11, 10, 12,
OG additional books interspersed with Kaplan material (Kaplan premier, Verbal workbook, Kaplan 800) just for different practice
Phase 4 - Difficult material
Verbal
LSAT Superprep,LSAT papers and forums for RC & CR
GMAT SC - Brutal SCs and additional practice for SC
Quant
GMAT club tests Jack "Challenge" questions
Phase 5 - Tests
Take as many tests as possible - GMATprep,
MGMAT, Kaplan, Knewton mostly - maybe some other ones
This is quite similair to a lot of study plans - its just I have tried to put together something that will work for me- given that I have been out of touch for a long time and would need a lot of time to get a top score.
Good luck!!