Tough choices... from 14 to 6.
If 8, I will choose: PX-760A, PX-716A (both in Master), BenQ DW1650, DW1655, DW1640, NEC ND-4571, Lite-On 16H5S, and one of the Pioneer. The rest can go to external enclosures or towers.
If 6: one (or two) Plextor, two BenQs, one (or two) NECs, and Lite-On 16H5S. The rest go to enclosures.