Oh, installing speaker wire is a different story. It can be a simple job in some cases, and a real pain in the butt in others. Just depends on where you need the wire to go.
One option may be to drill a hole in the wall behind the speaker, then borrow what is called a fish tape (see picture below) and stick it in the hole going down to the floor, or up to the ceiling if you have an exposed attic above this room. This is to make sure that you have a clear path in the wall cavity. If you go up to the attic, you will most likely need to drill through a header 2x4 or two to get a hole that you can fish the wire through. Get it up in your attic, and find where you need to bring it back down into the room (by your amp or receiver) and repeat the process. Drill a hole behind the receiver/amp and fish up again and as long as it is clear up to the ceiling, go back up in the attic and drill a hole for the wire. Fish the wire down the hole to the receiver.
An easier option might be to fish down to the floor, and pop off the base board running along the bottom of your walls. Be carefull not to damage the walls when doing this (just take your time. If you get lucky, the baseboard removal will show a small gap between the floor and the bottom of the wall, you can run your wire in that gap and put the baseboard back on when done. Completely hidden that way.
Just two thoughts.
Oh, and here is a fish tape.