I could never get wireless to work all that well with 1080p material. SD or compressed HD material (like from iTunes) was fine, but full 1080p MKV's was stutter city for me. I seem to recall a full 1080 stream requires about 3-5 MBs. That is at least 40 Mbs for a single video stream. While 802.11n is theoretically capable of 150 Mbs, most setups will not come close to that.
For instance - I had an Apple Airport Extreme based network that extended the wireless network using two Airports (which reduces the available bandwidth). In spite of the routers reporting a a 75 Mbs link speed on average, my 40 Mbs RoadRunner connection was degraded to about 25 Mbs on the other side of the extended network. 1080 video would not play for more than a few seconds without stuttering.
I now have a hardwired CAT 6 gigabit network and I can run two 1080 movies and surf the web with absolutely no issues at all.
Forget wireless if you plan to run full 1080 material in my opinion.
Emotiva XMC-1 & XPA-5, B&W CM9s2, CM8s2, CMC, Hsu VTF-15, Sony BDP-S790 & HX929, Auralic Aries, Apple TV