I have a Mavic A319 rim laced to M750 XT hub, front only though and would need to check it over before it's a firm offer - I can't remember how worn the the rim is!
I also have a silver 36 hole Deore (M590?) non-disc rear hub that almost matches it, hence my wanted ad for another A319 rim (ie I planned to lace up the hub to said rim to make a 'pair') if interested.