GMAT Date

My GMAT Date is 20 June 2008. I have about six weeks to prepare for it. I am planning to give six practice tests overall and hopefully aim to get a 700+ score. My quantitative skills are quite OK , I need to practice more on the verbal section. I read a few GMAT strategies at beatthegmat forums but I feel, each individual is different, so I am going to take it by the day. I plan to work on the problem solving section today.