Another browser that no one has mentioned is Webstractor ( http://www.softchaos.com/products/webstractor/overview/ ). Truthfully it is more of a web research utility than a true browser. Would be great if OmniWeb had some of its capabilities. I hesitated posting the link though since many things I have been asking be fixed have been ignored for years.

Features/Bugs I have been requesting
- Better bookmark navigation when adding bookmarks.
- Delete empty tabs automatically when opening bookmarks in tabs.
- Close windows automatically when dragging all tabs out of the window.
- Use external download manager i.e. interarchy.
- Cache content for workspaces.
- Large forms take forever to submit.
- Show whether the site (and the current page specifically) has already been bookmarked in the location bar
- Have the option to view bookmarks sorted by host.
- Allow editing of cached pages (see Webstractor for details).