Growing tomatoes vertically

[BirdsongNC]

I am putting in a couple of long raised beds (4'x 36') and wish to grow tomatoes vertically down one of the long sides. I would like to get the most tomatoes per space, what type of support system should I use? What has worked for you in the past? How close can they be planted together?

Right now I'm pondering using a 6ft high cattle panel as a support, a string style trellis, or the FL weave, any suggests would be awesome!!!