Site-wide or per-seat, I'm not really sure which would be better. For the companies I work with, which are by-and-large pretty small, I think a per-seat license would be better (several of them only have 2-3 production analysts). You could do ~$600/head including support+updates for a year (might want to cap hours of support, however) pretty easily I think.

I'm not any better at marketing, I just know a lot of people that would use this if it were pitched at them correctly. Unfortunately, most of sales involving enterprisey companies is in the pitch and not actually in the product....

Alternatively you could just get bought by Microsoft like that other guy mentioned.

Best of luck!