Use the same book; I'll also throw in a plug for the electronic logbook of your choice. Keep using the paper log, but the e-log is convenient for totaling.
It seems like you have ample study material. You'll need the PTS in some form as well; it's online. The ASA oral guides are a good source of gee-whiz stuff too. It seems they want you to buy both the f/w and r/w versions, but I'd start with just the r/w. Most pilot shops have them - don't pay retail price.
ASA: Oral Exam Guide
And, Mr. President, if you're thinking of aviation as a career, improve your spelling, punctuation, and sentence structure. You'll stand out from the crowd and communicate better to boot.
