Falling behind

it is realistic, again depending on time you put in per day and you might want to leave a couple weeks for practice

You still have a lot of time so I wouldn't panic quite yet. The MGMAT quant books are good for building a base, but you should look at them as only warm-up. To improve you need to do a lot of practice problems and practice tests after you have picked up all the basics. I only had about 6 weeks to study for the GMAT so I ended up doing each of the MGMAT books in one sitting, except for Number Properties (2 sittings over two days), Geometry (2 sittings) and Equations (3 sittings---by far the hardest of the three books). Note that I only did practice problems in the books and not the list of OG problems at the end of each chapter. I ended up doing all the OG problems after I felt comfortable that I knew all the basics.

Hey Slingfox, what such practise material do you recommend ? My plan after MGMAT guides is the following :

OG12, MGMAT CATs 1-4 , GMAT Prep I and II CATs

Anything else I should consider adding ?

From what I can gather, it seems the MGMAT books are all one needs to study, then do the practice tests...
Are there any other resources that people recommend on top of this?

I would do the following:

1) Go through all the MGMAT books first, reading the lessons and doing the problems at the end of each chapter.

2) Do half of each section in OG12

3) GMAT Prep I

4) Do as many GMATClub Math Tests as possible, mixing in the various MGMAT CATs. i.e., practice during this phase consists of GMAT Club tests and MGMAT CATs

5) Do second half of OG 12

6) GMAT Prep II, perhaps several times

Review notes and errors throughout process above.

my exam is less than 1 month and i haven't even opened any math books (i've done the OG Math book already though, but really, that's the only thing i've done).

well, to be fair, my strategy is to allocate only 1 week to math (as i'm fairly comfortable w/ most of the stuff)... but then again, i feel your pain! work has been slow recently, but it's going to get really busy soon. NO TIME LEFT ahhh...

Sailing in the same boat. Have about 2 months to prep and the Number properties book is just eating up my time. To add to my misery, I keep forgetting what I read 2 days back