I've used Vista Print Sitebuilder
Vistaprint Sitebuilder is very easy to use. Obviously you're not going to get the best SEO with this type of site, but if you just need to get it started, it is worth it. I built a site in about 8 hours for a friend, it is at painministries.com. Not a great site, but he needed a quick site and business cards when he returned to this country and it was lightning fast. The sites organic traffic is actually decent but since he offers services, there are no sales conversions to track.
My only complaint is that I don't believe you can remove the "Powered by Vistaprint" at the bottom, although I do know that they offer custom built sites at reasonable rates, and they may remove that for a price.