Here's a picture of the DIY mounting arm I made. And Keith is right--a boom would allow you to do the same thing. However, with a boom, the flash still resides in the middle of the softbox. Directions for the DIY mounting arm are listed in the caption.









As far as the differences between the different B&H listings--from what I've seen in the flickr strobist threads, there is no difference (except that the Speedlight Set comes with an umbrella swivel). The difference in prices is unexplainable (especially since the one with the umbrella swivel is less). If you want the Apollo, get the Speedlight Set (that's exactly what I got).