In an effort to increase my photography flexibility I ordered a monolight. If you don't know what a monolight is, think of it as a extra powerful flash that operates off of your camera. Monolights help you achieve ideal lighting in situations with little or now light sources.
There are a lot of monolights out there that vary on features and power. The Savage FT-150 is not the most powerful or the fanciest unit, but it is a great value for the price.
This unit puts out 150 watt/seconds of light. That is not much compared to the units that put out 10 times light, but it is a great benefit to a dark scene. The effective range is over 100 feet. Plus the unit has a 150 watt modeling lamp that can help you focus and see in dark environment.
And, as icing on the cake, the unit has the ability to be a slave unit to other flashes. This is done via infra red signal (IR). IR is line of sight, so there are some limitations, but it is nice to have a built in remote trigger ability.