I'm looking to start doing a series of portraits, with some based around the lighting style of Hurrell (sp?). Currently I have a basic set of two Bowens Esprit 500 heads, a small soft box, barn doors and a snoot. Does anyone have any recommendation for other lights or accessories I may need? - I've also got 2 Strand Patt 123 fresnal flood lights, a Patt 23 spot and a Patt 23N spot (unfortunately they all require a re-wire and new bulbs).
My thoughts are thus - buy a larger soft box to provide low level of general illumination. Replace the theatre type bulbs with balanced E27 bulbs - the low energy ones that kick out equivalent of 300w+
The thing is I'm not sure how changing from the point source of the theatre bulbs to the more diffuse one of the energy saving ones will effect the final output of the light (i.e the effect, I know there will be a reduction of light levels as the current light fitting and bulbs kick out 500W).

Any suggestions would be appreciated.