Thats a good idea, Fabiano, I hadn't thought of that.
Going down the strobist route is probably the best option, it gives you lots of flexibility and is probably the most cost effective way.
I experimented with the off-camera flash/strobist set up for a while, mainly using 2 flashes and wireless triggers. I mainly focused on some location shoots and also mountain biking shots and got some great results with the same set up as
fabiano .
James