Bearcat 350 seems to be a popular model and works well. The Radio Shack scanners also work well. http://www.scannermaster.com/
It is better to use a mobile/base model than the handheld units.
You can receive Tower, Approach, Departure, and Ground by entering the frequencies and scanning those channels in your scanner. If you prefer, you can put tower on priority scan and it will override the other channels when the tower talks.
There are many antenna choices, but the most popular are the J-Pole and Ground Plane antennas. http://www.arrowantennas.com/gp/gp146.htmlhttp://www.jpole-antenna.com/
Use the largest coax cable you can afford and put up the antenna as high as possible (at least 30') to assure reception of planes on the ground. Sometimes a preamp will help with weak signals.http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=PR2
I'm sure Dave can give you more helpful hints if you email him using the form on this website.