Well, the first addition to this system will be base plates. I want to use these vertically for smaller events. Then, maybe I'll add 2 8.2 ft segments and some corner pieces. However, I don't really like the look of the rectangle, so I would probably be going for the "arch" look, like Tyrone has.
The next purchase will definately be a huge upgrade of my sound system, as I am sick and tired of renting, and the only alternative to renting is to use my EONS and JRX subs. Only drawback to the size system I want is power usage (I want to get something huge, but still need to learn more about power distro).
Anyways, the truss is a huge upgrade for me.