You can purchase a hummingbird gps on the following website: http://www.humminbird.com/. They have a great selection.
You can purchase gps lake maps for Dallas on the following site:http://www.lakemap.com/lakemasterdigitalgpslakemapcards.aspx. They come in handy.
You can purchase an alpine gps system at your local Best Buy in Dallas. They usually have a great selection.
You can purchase a telenav gps navigator in Dallas TX at your local Best Buy. They have a great selection.
You can purchase a Garmin GPS system in Dallas at your local Best Buy. Garmin is probably the most reliable brand out there. Best Buy
You can purchase an auto GPS system from either your local electronics store or online. Generally buying online will give you a larger variety of GPS brands that are tailored to your needs.
One can visit any local electronics stores to purchase their raymarine gps units. Or, if more conveinient, one can purchase their raymarine gps online.
There are many places where one can purchase a GPS for a bicycle. One can purchase a GPS for a bicycle at a local bicycle store or at online stores such as Amazon.
You can purchase a gps receiver chip whereever you can purchase a gps system. you can go to walmart, target, best buy, outdoor world, or online as well.
You can purchase a Garmin nuvi 350 GPS Navigator online from the official Garmin website. Alternatively, you can purchase a Garmin nuvi 350 GPS Navigator from Amazon.
One can purchase mounts for the Garmin GPS at Best Buy or Target. One can also purchase mounts for the Garmin GPS online at Pronto, Amazon, The GPS Store and Zapmeta.
One can purchase a new GPS in any auto shops near ones neighborhood. Also, one can purchase a new GPS at a good price in online stores like amazon or eBay.
You can purchase a GPS running watch at most sports stores or any department store with a sports and electronics section. If not, you can purchase GPS running watches on any online retailer such as Amazon.