Explored May 29, 2012. Thanks!
I've been testing out the GamiLight Square 43 softbox. It is a really nice portable softbox more than twice the size of the Lumiquest Softbox LTp. Construction is great and it sets up pretty easily. I really like the quality of light so far too. Definitely recommend using the diffuser on the speedlight as you will have a serious hotspot otherwise. This will be great for those sessions where I have no assistant and need a wind resistant modifier.
Taken with the lowly 35mm f/1.8 (in 5:4 crop mode) on the D800.
Strobist: SB-800 on TTL in GamiLight Square 43 handheld camera left, fired by pop-up flash through CLS.