Hello,
I'm doing the same exact thing. I took my DAT almost 2 years ago (gosh it's been so long!), and honestly I didn't take it seriously enough (AA 15). I only studied for about two months after I graduated from college, and it wasn't enough. I was also working full-time, which made it difficult. Currently, I've been studying the Kaplan book, referencing some old text books (gen chem, o-chem, and bio), as well as using various sites on the internet to help me with studying. On average, I get about 3-6 hours a day of studying done. I've been spending a lot of time on the survey of natural sciences, for I feel this is the area I need a lot of work in. I've also purchased DAT Achiever, but I'm putting that off until I feel that I'll have sufficient time for once I finish going through the SNS. I would like to take my DAT in a few months, but I 'm going to wait until I know that I'm fully prepared, because I only want to have to take it one more time. As far as applying goes, I applied to 10 schools, which are all participants in the WICHIE program, since I'm from AZ. I got turned down from most of them, and didn't even hear anything from the others. So, my primary focus right now is to get a killer score, and reapply this coming May. Hope that helps, and I wish the best!
"Nothing comes easy...and if it did, it wasn't earned."