I've always designed my own logos (including the one for this site) and have done logos for quite a few client sites and logos for my husband's sites too but I use a mix of software from Adobe (photoshop, fireworks, etc.) that are not necessarily a 'starting point'.
Do you have a concept in mind or even just a start to brainstorming?
Perhaps if you listed your ideas here along with your company name we can help you conceptually?