General

Help me redo my room

[url=http://www.youtube.com/watch?v=w2nzgSitjsA]Video[/url] The color of blue looks much lighter in person.
So I'm planning on doing a minor revamp to my bedroom. I need some help deciding on a few things, choosing things, and inspiration.

I'll post a video/picture of it in this thread in a bit, but I can't at the moment.
The walls are a light shade of blue, double bed, new fan, desk, dresser, closet, bedside table, etc.
I'm probably not getting any new furniture, but I want to put in some speakers in my whole room. The room itself isn't huge, but it's still a good size.

I want some speakers that I can either mount on the walls, put in the walls or ceiling, or etc.
Price isn't too much of an object, but if they're over $400 or so that's a bit too much. I'm looking for some speakers that deliver amazing sound quality, and bass output.
I listen to dubstep and other bass music a lot, so I want them to be good for bass. My room is almost rectangular, with the exception of where the door is. There is no computer or television, they are all downstairs.
I know this is kind of scrambled, sorry.

I have a few layouts in my head:
One speaker in each corner, with subwoofer in any place.
or
One in the ceiling above my bed and one in the ceiling above my desk.

The first is probably preferred, because surround sound is preferred. The speakers will probably only be used for music coming from my iPhone. But I MAY end up putting the computer in my room, so I want to be able to use the speakers with either.

I also want to know what color I should repaint the walls. This one probably can't be answered until I put a video/picture on the thread.

I also plan to take down most posters in my room and get new ones. They can either be framed or not framed, I don't mind. They can even be pictures.
Obviously, you don't know what I like so you don't know what to look for. Well...
I like cars, skateboarding, dubstep, any type of electronic music really, rock, Xbox games, minecraft, any kind of art. I like The Rasmus, System of a Down, Breaking Benjamin, Skrillex, Circus Records DJs, deadmau5, any dubstep honestly, Portal, funny stuff, ETC.

That's mainly all that I want to change, please leave suggestions for speakers, colors, and wall decorations!
Video/pictures shall be added soon.