Home Theater downstairs in the living room.
TV in my bedroom, upstairs.
Office room upstairs - will house my main pc.
Right now, all I have is the pc. I am buying my own house so this is the first time this is an issue, in the past I have used a dedicated htpc in the living room and my own computer and tv in my bedroom. Now that this will be my own place, my main pc will go in the office, but I will still want to access the content downstairs and in my bedroom. The only other device I currently have is a ps3, which will go downstairs.
I am very skeptical about wireless streaming as the few times I tinkered with it using my ps3, I had difficulty even with SD content.
I realize this is a very generic question; right now I am leaning toward 2 additional, independent HTPC's - one in the bedroom and one downstairs, though I'm sure there is a better solution. Would also be nice if I could store all content on just one PC (the main one in the office).