The basics of prepping.......

GMAT must-haves and must-solves.....

QA:

Must-haves are

1. OG12
2. Kaplan Premier/ Kaplan 800
3. Manhattan Guides

Must-solves:

1. Manhattan tests
2. Grockit forums
3. Powerprep tests

4. All free tests available (I will post a comprehensive list of such links)

For VA:

Must-haves:

1. OG12

2. Manhattan Guides

3. Kaplan Premier/ Kaplan 800

4. Princeton Review

5. Nova GMAT, if possible

Must-solves:

1. Manhattan tests

2. Grockit forum

3. 800score.com tests

4. Kaplan tests

5. Princeton review

6. 1000 SC, CR and RC