Dear Wayne
If you are seeking a good GPS system, I heartily recommend Garmin products! I have owned five or six of their products and each one has been better than the last. They are terrific GPS receivers and will provide you with good data which is easy to understand and easy to operate. I would first look at the Etrex Vista. I know money is always a consideration, but I would not skimp on GPS-that said, I find the whole Garmin line from entry level to the top of the line will probably satisfy your needs.
Look at this unit for starters:
http://www.garmin.com/products/etrexVista/
As Kerry stated, don't rely 100% on any electronic device, but you will find this is an excellent addition to your pack. You might be surprised how often you will use a GPS unit even when you are back in the city or traveling. Many have world wide capabilities and they have downloadable CD maps to give you detailed maps of almost any destination.
Hope this helps.
Regards,
John
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