I'm assuming you're referring to "Plex", right? (
http://www.plexapp.com/) I've had a lot of problems getting that running... I think my media collection is too big.
Yes, you understood me. At the moment, I've got my desktop running an old version of Tversity (since it used to be free), and I watch the content on my laptop using MP-HC. I'm pretty sure Tversity failed to stream the 10bit release of Bakemonogatari so I ended up hauling my external hard drive around. Also Tversity seems to work perfect with subs, multiple audio tracks, etc.
A solution I tried in the past was my PS3 with PS3 media server, but the performance is abysmal over Wi-Fi, since the PS3 system still uses wireless G.
I guess, in the end, I want to know if someone knows a complete solution to get 10bit video off my hard drive, over wifi, to display on my TV.