Ask HN: Recommended SSL CA?

I've had mixed experiences with a couple of different certificate authorities (Comodo and StartSSL) and began searching for some reviews, but I'm seeing a lot of sites that appear to be pretty biased for marketing purposes. So I figure why not ask HN, a reputable source for this kind of info.

I'm not looking for anything high-end since it's just for my SaaS startup that is not yet live and paying for itself. If things take off, I'll probably upgrade the cert, but for now, an easy to install cert for under $100 is probably ideal. What would you recommend these days?