I honestly don't think it matters too much. You can get certs from $15-$20, and, while most of them will try to upsell you to a more "secure" version to "give y

I honestly don't think it matters too much. You can get certs from $15-$20, and, while most of them will try to upsell you to a more "secure" version to "give your visitors confidence", 90% of your visitors probably won't know who issued your certificate. As long as it's trusted in MSIE, Firefox, and Opera you'll be fine.