Nook Book Lending Library Club discussion

I'm a relatively new Nookie, and am still in the midst of several series--transitioning from paper to epub. I admit to having a serious fiction addiction and have been double dipping (meaning buying in epub what I already own in print, or have borrowed from LendMe or the library).

What, if any, have you double dipped? I've got a few on the Wish List so far:

J.R. Ward Black Dagger Brotherhood series
Lora Leigh Breeds series
King of Darkness--This will be a great series--Watch for it!!!
Deborah Cooke Dragonfire series

Best,
DA

there have been some series that I have wanted to keep, so I am replacing or have already replaced the books for my NOOK.