joe
I agree with the majority that a degree is the best course of action prior to entry, but you should take into consideration the implementation of the new military pension scheme which IMHO will disadvantage anyone joining on the new terms. If I remember rightly it is mandatory for all new joiners after Apr 2005. I know that your pension seems like years away, but joining under the current terms will ultimately give you more choices later in life.
Anyone else care to comment ??
Rgds