RE: Proper technique
definately, a gps will offer security, but also take and be TOTALLY prepared to navigate with maps and compass if need to b/c electronic things can break. For a great little GPS however, look at the etrex. You can pick one up for right around $100 and they are super easy (as opposed to some others) to learn and use.
Finding a good hunting partner(s) is worth gold. Also knowing what to pack (even in a daypack) and what not will also add to your feeling of security, thus giving you the confidence to hunt where you need to.