GrassStrip
My advice is somewhat different to Fuji Abounds! Go ahead and get a GPS, but get the cheapest (reliable) unit you can get. A Garmin Etrek or a Magellan 310 (my one) which you can get for sub £100 or $ if you visit the States.
In prepping for your flight.
Do the old fashioned planning
Carefully input your waypoint map references and use the subsequent distances as a cross check against the above.
Take the thing with you. Stick it above the dash somewhere and... forget about it.
Enjoy the flight, work on your VFR navigation technique, and if you do become temporarily unaware - you've got a great failsafe.
When you've really got on top of VFR navigation, that will be the time to invest in the fancy moving map gizmos should you feel the need (IMHO).