JM,
What trade/classification? RegF or ResF?
Depending on what job you'll be doing and whether you're full or part time will ultimately determine what and how much you shoot. Sadly, the CF does not and can not ensure all members get equal range time. To keep my own skills up to a reasonable level, I've picked up an AR, a HP and a Norc copy of the 226 (we carry prohib 225s in my line of work so I went with a cheap and similar rest'd alternative).
Off the top though, keep what you have, save some of your paycheques (drink your first to celebrate) and buy an AR as a grad gift to yourself when you're done basic.