I have 29 sticks of Nanya 8gb 1333 ECC (NT8GC72B4NB1NJ-CG) also branded Dell SNPX3R5MC/8G. And 1 Samsung M393B1K70CHD-YH9 another 8gb 1333, not Dell branded. The Samsung I swear was a Dell replacement for a bad stick, but honestly I don't remember one going bad. I recently upgraded to 16gb's, and been meaning to sell these for a while.
I have no use for the 4gb sticks though. I think $50 per dimm shipped is pretty reasonable. If your interested, let me know and we can work out some details.
I know I'm pretty new around here, so I'm sure I can find some way to make you feel comfortable with the transaction.