Both the EDIMAX 150 MB and 300 MB adapters will work. I have tested both in my system and they work fine. The 300 MB is Edimax Ew-7722Utn Ieee 802.11N - Wi-Fi Adapter
I use the EW-7222UTN-IEEE-802-11N V2 on both my D1000’s Touches and they work just fine. I also gave a few to friends using the HDX, and they have no problems also.