We are a very strong team technology-wise but little start-up/business experience on board. It would make an awful lot of sense to extend the team with someone who potentially has start-up experience already and/or has a track record in strategic sales, etc. - we're located in Ireland. How and where to find such people and what are the criteria to find a 'perfect match'?
I'm based in Ireland too, and I recently join a startup myself. The founder and I "met" on the most visited place on the Irish slice of Internet, i.e. Boards.ie forum. He posted a request like yours, and I replied to it explaining why I was interested, what I could offer and so on. I'd therefore suggest you could do the same, and give you the following recommendation:
One final note: while we, technical guys, can talk for hours about the latest feature added to our software, most business/sales people are not very interested about it and are used to talk about money. This makes them better negotiators than us (I've seen IT guys afraid of asking for a raise after doing an excellent job, but never a sales man asking for it despite poor performances). I'd therefore recommend to set clear limits (maximum salary, performance review, how many shares you'd be willing to give) and stick to them. If a candidate promises a 500% sales increase, just say that you'd be happy to review his/her position when it will happen. Agile and Adaptive development! :)
Best of wishes for the future (and maybe, one day, we could meet in person)! :)
My advice might be more specific to the US. But generally (and it's not a perfect rule) if you can't get your ideal minimally executed enough to engage others, and don't have enough of a network to attract partners - then you are not ready for a startup. Either you need deep enough experience in one area (enough to make the idea seem real to other stakeholders) or you have the reputation and rolodex to get lots of help. If you have neither, then you are merely someone rather inexperienced with what may-or-may-not be a good idea. It may sound harsh ... but it is something to consider.