Treading the GMAT path....help needed

[abhisec]

I will be taking my GMAT at the end of july and need help and guidance for cracking it. Here is a brief description of what i have reviewed so far :

1) Took Kaplan's first test online got 570.
2) Started glancing through Princeton review......not stimulating enough, i just glanced through the quants section and everything seemed to be too basic.
3) Last weekend i took powerprep 1. Scored 680.(Q-47, V-36). Test seemed pretty decent, but i got my first quants question wrong and i am assuming that hurt my scores. I did pretty bad on Verbal and Reading comprehension was painful. I finished quants with 6 mins to spare and verbal with 4 mins to spare.

Now all you folks here can maybe help me. Here are my questions?

How much more can i expect to score based on power prep scores, if i have not done any serious prep so far?
What should i do to score more on Verbal?
----- I have MGMAT's sentence correction and Kaplan's book. I also have the OG verbal review.

[Prasanna]

PowerPrep tests are older version of the GMAT tests. You would need to try GMAT prep to have an idea of your probable score. In terms of prep, OG review, math and verbal are a must. MGMAT SC and Kaplan would be a nice addition.

I would say you have a potential to score well with prep. 570 in Kaplan without any prep is decent. Kaplan is considered to generally give scores much lower than what you may get on the actual exam. If my memory is good, I think I got around that score when I took Kaplan without any prep. I ended up with 740 after good prep.