I'm an author of a DiskFonts font viewer panel inside Dreamweaver CS5. (Works like a native Dreamweaver panel). It previewes fonts from disk without installation. It is dedicated to web and graphic designers who work with fonts and HTML5.
I receive a big interest to it from the web designers community.
It's located here: http://anastasiy.com/diskfonts
I want to make it better for designers around the world. Please, if you want to and have some time - write here the most wanted things you miss in the font comparing process insider Dreamweaver? Like a sophisticated font support? Font finding, or something else?