Anyone have a good recommendation for strobes to use with 8x10? I currently have a set of Calumet Travelite 750s, which I suspect won't have enough oomph to get me the depth of field I need, especially when using 30x40" softboxes. I'm shooting an old Calumet C-1 with a 14" Commercial Ektar as my main lens. I'm saving up my pennies for a longer (18-24" range) lens for doing head/shoulders portraits, which will limit dof even more. Are there decent monolights out there that will serve me better, or do I need to go up to a power pack and heads? Should I stick to the Calumet Elite, the Bowens QuadX, or go with something like a Profoto?