Attaching cable to ceiling/sheetrock (outside of wall)

Hey guys, my router/ps3/TV is in a room down the hall from mine that is pretty much a straightshot. I live in an apartment complex so I really don't want to drill into the walls and run wire through them. The only thing preventing me from just running down the side of the hallway is one opening in the hallway that I will have to go across. So my plan to make it look nice is to take the cable and go up the wall in the corner of the hallway next to a door frame, then go through the hall along the ceiling. Does this sound like a decent idea? Hopefully I explained myself well.

My question is what methods do I have for securing cat6 cable to a ceiling/sheetrock (it will be in the corner b/t sheetrock and ceiling)

edit: Btw, I'm doing this so I can stream 720p/1080p content to my PS3 from my desktop in my room. I have found that wireless sucks for streaming that kind of stuff (even with great signal quality). Granted, I'm on a G connection, but I thought it would be worth the slight aesthetic detriment rather than shall out big bucks for an N card just for the reason of streaming.