SSCX Frames- What's available these days?

I'm really digging the simplicity of my current singlespeed 'cross bike (Bianchi San Jose), its enough bike for my skills now by far, which isn't saying much at all.  But I'm wondering what else is out there frame wise, as the Bianchi is pretty dang heavy.  Redline has one, Twin Six has their Raleigh-made frame.  I know there are more, any thoughts?  I could always convert a geared frame with a Eno hub or tensioner, but I don't really like that option, especially the tensioners.