I would reccommend
www.breakingintowallstreet.com. It teaches via video and has accompanying excel files for you to download so you can do it alongside with the videos. You can also post any question you might have and get a timely response. Membership is for a lifetime and they are always updating the site. I think in the next few weeks their adding a hypothetical case study of a merger between yahoo and someone else I can't remember. Anyways, it's worth checking out.At $249 it's far cheaper than some of these other guides. As long as your looking for fundamental knowledge to get you through your SA or starting FT interviews this should be more than enough.