I used a soft box way high up down at a sharp angle without the diffusion panel since it was lower power. Then used a shoot through umbrella right next to it for extra fill and enough light to get a high enough shutter speed to freeze the motion.
It really depends on what you plan to do, umbrellas are super versatile and great to use for most general applications. I find though if you need more control over your light, such as I did in these shots using a softbox + a grid is awesome.
I used a Canon 60D with the Sigma 30 1.4 and a Yonguo YN-560 flash with Yongnuo flash trigs.
If you're using speedlites I recommend the Cheetah Qbox 24.
word man. after reading most of the content on the strobist i find it hard to really ever want to use model lights to shoot, i actually did the past stuff i posted in here with a yn-560 as well, but opted to get that lumopro lp160 because the ui of the 560 is so bad. but to each his own, the quality of the flash was great.
and super thanks on the recommendation for that softbox, i was about to ask how you used a softbox with a speedlight. ive been looking for something like this.
as for gear, props on the 60D, i use one too. but for the lens, why did you choose the sigma 1.4? just wondering, not trying to berrate you.