I've taken the MCAT, and I like the Kaplan and Examkrackers books the most. Kaplan's book is a little overkill and dense while Examkrackers is easier to read but a little underkill. If you have problems with the MCAT style of questions and/or need practice, I would reccommend the 1001 Questions series by Examkrackers. Reviewers have said that there are occassional errors in those books, so I would be wary of that.
If you are talking about the PCAT, then those books would work too. However, the PCAT doesn't have as much material as the MCAT in the science sections. For your purposes, you wouldn't have to omit much of the biology or chemistry content in MCAT prep books.
I actually used a Kaplan MCAT study guide instead of a PCAT guide. I got a 99% on biology and a 95% composite. I bombed the math section (got a 55) because I didn't study it enough. The rest of my scores were mid to high 90's.
I checked on Amazon and found the Kaplan cost 28.35, cliffs cost 13.59, and the Barrons and Petersons were not in stock. I will sell all for books for 30 or Best Offer. I am from West Palm Beach Florida area. I would like to sell the books to someone from area so we could just meet up and skip the whole shipping thing. I also have two Organic Chemistry Study guides that are on Amazon for 28.95 and 26.99. ISBN's 0471272353 and 0471738085. I will sell both books for 25 bucks. P.M me if interested.