Smalldog has at least one 2.8 octo new, and (at least?) a used 2.8 octo with French Canadian keyboard... 😱 No refurbished, but keep checking.
I bought my refurb Mac through Smalldog and I HIGHLY recommend dealing with them. Not only did they quickly, professionally and nicely handle replacing my first unit when it died within days, but they put in extra RAM when new Macs were released while the first unit was in transit back to them. Of course, the new Macs are out now, so don't be expecting free RAM. 😛
However, based on my own experienced with buying refurbished, I won't do it again. JMHI.