I've been watching this myself as I have an R410 that could use some more memory, but I'm super cheap and am waiting for prices to fall to the $1/gb mark. Still for current market price for a brand new piece, this is really good:
SAMSUNG 8GB M393B1K70DH0-YK0 (BSTK) - M393B1K70DH0-YK0-BSTK - Z - CDW Internal Use/Service Pts - CDW.com
I don't think there would be more than one available, but it still may fit the bill for someone out there.
SAMSUNG 8GB M393B1K70DH0-YK0 (BSTK) - M393B1K70DH0-YK0-BSTK - Z - CDW Internal Use/Service Pts - CDW.com
I don't think there would be more than one available, but it still may fit the bill for someone out there.