Chem,
Relax and enjoy the next 9 months, because beginning in May you're going to be busting your butt for about 3 years to become fully qualified in whatever aircraft you end up in. The AF will teach you what you need to know, and IMHO you're honestly not going to gain much by studying ahead of time. If you're hardover on studying ahead of time, go to the AF Pubs website, search for AFMAN 11-217, and start reading...just remember most of what you read will not apply to anything you're going to do at UPT.
RASH (ORF)