The new genesis frames are nice not complete 853, i think only the top, down and seat tubes are 853. Build to run large forks though 100-130. Disc only.
Sanderson Life is another alternative but they come in a horrible grey paint job. I like the look of these frames though and British built too
Dialed bikes - prince albert, nice frame and a good price but again designed with a geometry to run a 130mm fork.
http://www.dialledbikes.com/techspec/princealbert.html
Others worht a mention are the
Charge Duster and
voodoo bizango which comes with removable V Brake mounts??!?!? Perfect if you want to build it up with retro parts or just new v's
I've got a Rock Lobster Team TIG 853. Love it