For a truly minimalistic browser with support for modern HTML and a serious orientation towards security, see xombrero at https://opensource.conformal.com/wiki/xombrero . It provides fine-grained whitelisting for plugins, js and cookies, and options for enabling/disabling many other security/privacy-critical features, like 3rd party cookies, referrers, etc. The same guys also have made AdSuck, which blocks ads at the DNS level.
These tools do not have the eye-candy that Min has though. Kudos for the design, it's indeed lovely.