Oryx is a Canadian company, out of Quebec actually, that I really don't know much about. But being Canadian is good enough to get them on the BikeGuide.  oryx is part of the procycle group which includes rocky mountain, ccm, and miele. their corporate website doesn't include oryx though, but there is an oryx site with nothing on it, so i don't know what their deal is.
HTA 750 - This looks like a full-on race bike - XTR everywhere, Marzocchi X-Fly fork, aluminum frame - very nice.