I picked up Rick Warren's Bible Study MEthods recently. It's a new book that just came out. I'd seen it a few places, and picked it up, thinking it would be pretty simplistic and not too indepth, but I was wrong. So, I bought it. It is simple to understand, and segmented to detail different types of studies you might want to do. It explains the tools of Bible study (lexicon, Bible dictionary, etc), and provides a nice format for doing book, chapter, and word studies. It provides 8 study methods in all, but those three are the ones I find most useful. He provides aids for roadblocks to study, such as our own laziness or busy schedules, which are the biggest hurdles for most. It is a very valuable book that I would recommend.