and Princeton Review
may offer some good strategies for you in tackling RC. I think the strategy one uses is very specific to their strengths/weaknesses in reading and comprehending quickly. You will find that some strategies dont work for you and others do. There is no one answer on that. Check out some of the stickies on this forum, ones that come to mind are Rhyme's post in the GMAT forum and IHATETHEGMAT had some good advice somewhere on strategies for RC.
The one thing you will need is PRACTICE. Do a lot of practice and keep track of which types of Qs you struggle with. It gets easier. Use the 1000 verbal question series for practice, I believe theyare posted in this forum.