Hi SoCalGiant,

Juggling between work and studies is tough so you need to define a significant time for your GMAT preparation. Sometimes taking few days off work for preparing for the GMAT can help a person tremendously. If you have time this may not be a bad idea. Take practise GMAT tests to see how you are doing. If you cannot do that don't worry. What might work instead is to set aside 1-2 hours at night on weekdays and major part of your weekend to study and prepare for GMAT- in this case we will suggest a good 2-3 months preparation. However we recommend you to keep taking practise tests to gauge your performance. It will help you in identifying your weak areas and you can focus on them accordingly. You might be able to study more than the given hours and that would take you less than 2-3 months. It all depends on your potential really.
There are various ways you can use to practise for your GMAT. You might need to change your practise style and try this combination to provide you flexibility and different styles to practise so it doesn't get monotonous.
It could be combination of-
1-Books- Books like- The Official Guide for GMAT Review, The Official Guide for GMAT Verbal Review, The Official Guide for GMAT Quantitative Review etc could be used.
2-Online Study Guide: Websites like Knewton, Grockit etc provide you with practise questions online.
3-Smart phone applications- Kaplan, Veritas etc offer applications to prepare for GMAT on your smart phones

Thank you for your reply Kavita. Unfortunately I only have six weeks so am studying as much as I can at the moment. I picked up the OG and started with Problem Solving and am going to work my way through Data Sufficiency by mid next week.

Are the Manhattan GMAT Books good? I was looking to purchase some of their books though am unsure as to how they stack up against the Veritas books.

Thank you!