we're a type s corp, so it's a flow-through entity. at the end of the year we distributed remaining profits based upon equal ownership (things have changed as we've grown). he worked off commission only to begin with and i drew a small salary once we had revenue.
but...i was in college and my salary requirements were low. the sales guy? my dad who had another job at the time (sales at: apple, sun microsystems, hitachi datasystems, etc).
i think that's not a bad bootstrapping model though. if you're both employed, you can both take commission and built it part time until you can jump ship and do it full time.
but the question i hear you saying is - "where am i gonna find a sales guy?" you and i are techies at heart and probably have mostly techie (non sales type) friends.
like everything else, sales isn't a great mystery but it's good to find an experienced person. couple ways to find people, and i had a recruiter recently give me some advice that i'll pass on to you.
linkedin is the new recruitment tool. start looking for some sales guys that already work for companies that have the kind of sales guys you want, and get a hold of them (not sure if you need a premium linkedin for that or not). there's also professional networking events around, but i find that those tend to be about measure whose dick is bigger versus making meaningful relationships.
which city are you in? look up startup networking stuff. i hear all the time about people who want to find a technical co-founder. annoyingly large amounts. and on projects i usually wouldn't invest any time in.
I've got a product that I have developed in the evenings that could be beneficial to the startups in the area. I work a fulltime as a Rails engineer, so I can only make a few contacts a night.