Hello and thanks for the very useful information about Princeton Review.
It has always been tough finding a good place for GMAT preparation and ironically in Pakistan, there are no professional institutions that are least bit sympathetic with the students.
Because I have not personally taken PR course so I will only partially agree with you. So I agree they are expensive and I have yet to see anyone convinced by their prep. Also, the class profile is not competent.
I also agree with your comments on probability. We tend to waste lot of time on that and in actual exam, there is hardly one question from it.
But I did get prob. in data sufficiency, hence I would suggest to study probability but dont get dragged into it too much, also to do it in mid preparation and then in the end, as doing probability in the end, only once is not suggested specially for students with non-engr background.
I did my prep mostly myself, only joined LEADS (near kalma chowk, lhr) to make a regular routine. And, it only helped me as much as I had expected.
My two cents about the preparation:
Manhattan GMAT CATS: I concur with aslan - GOLD.
Manhattan GMAT books: very good, I know a place in pk, if someone is interested to get them.
CR POWER SCORE BIBLE: must have.
kaplan CATS: Very tough but v good for practice. (Although large deviation from actual GMAT
Official guides -10-11-12: must complete all. (each one 30% different from the next)
Further prep:
1000 series for RC. (not recommended for CR or SC, as some errors)
For any further help, you can always ping me before I start my MBA

joining Melbourne B school in Jan 2011, inshallah ....
Best of luck,
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