would it be a good idea to get all the required vaccinations before I day, I read somewhere they would give you whatever you do not have; however I also read that its really a pain and just more stress the first few days. any suggestions?
I say definitely get the shots before I-day. I got the polio booster and Hep shot about a month ago, and they HURT. Seems to me that sore arms would just add to the stress of I-day and the first days at USAFA.
Definitely get them before I-day -- you don't want to get them during in-processing. As others said your arm might be sore and you don't need anything hampering your physical performance.
Also -- you never know if you'll react to the Hep A and you definitely don't want to have reaction then.
Good luck!
While I'd also recommend gettting them out of the way, it's really not a big deal. You're arm will be sore anyway from the large quantity of blood drawn (five or six test-tube sized containers, I believe). And physical exercise won't be a big deal for the first few days, so it really just comes down to stress.