Welcome to TTF.
When you do get your unit, the first thing to do is make an Explorer, not Home, backup of the unit's contents. If not sure how, see
here.
Then connect your unit to Home (the TomTom software) and see if an updated firmware application for the unit is offered. If so, download and install it.
Then go to Home's Tools-->Latest Map Guarantee and you should be offered an updated map (840). Download and install it. (It will take well over an hour or so for the download and installation since your model is only usb 1.1 compliant, not usb 2)
Then make
another Explorer backup to a different folder.
Thr map comes with millions of pois included. You will find out what is available for those locations when you try to Navigate to-->POI-->In city and you select the state of Georgia, the city of Athens and then the category you wish.
You can, over time, find other custom poi categories on internet sites. These will be downloaded as xxx.ov2 files. You simply copy these files into the specific map folder (USA_Canada, for example). The file may also contain an associated .bmp file for the icon; if so, just copy this file into the map folder as well.