You guessed it. I'm an ET. 
Thank you all for the information so far. Does anyone know about how many pairs of utilities, or any utilities, I should bring? Is the Reagan completely changed to the new service and working uniforms?
You'll need just one set of utilities. Make sure they are long sleeved, as short sleeves are not allowed down in the plant when we are steaming. As far as I know, the digi camos have not been issued on the West Coast yet. Last time I was in the NEX I didn't see any for sale. The service uniform is available, and a lot of people are buying it and tossing their johnny cash and working whites in the trash or closet at home.
As for what you should bring to the ship:
All of your poopy suits
1 set of utilities
Dress blues
dress whites (but it's winter now, so N/A)
workout clothes
a set (or two) of civvies
Hygiene kit (DON'T FORGET YOUR FLIP FLOPS!)
underwear, socks, t-shirts
What ever keeps you from being bored (ipod, books, DS, etc)
Edited for OPSEC.