Meike MK-D80 battery grip for D80 and D90. Basically brand new in the box. $60 shipped CONUS
If you go to Ebay and type in Meike MK-D80 you will find it. ($84.80 + 15 shipping)
Kirk BL-D80 L bracket $120 shipped CONUS
($169 + shipping from Kirk)
Buy them both for $160 shipped CONUS.