I recomend drinking, smoking & if you're still able chase some wild women. If you're in the service you probably already know about those vices. All that from over 20 yrs experience.

Seriously, when you do go shopping, be strong. Don't cave to the first fast talking fly shop opperator. Make 'em show you a few & explain their merits & short commings. First one should be inexpensive. After you use it a while remember what you like & don't like about it & use that info when you get the next one. Think portabillity & stabillity.