I finally got a long, rectangular room to darken and make into a tv room. Problem is, the walls are plaster so no dropping wires down from the attic, and the house is built (for some odd reason) very close to the ground, making it pretty difficult to crawl under the house to come up thru the floor. I guess I have to make do with running the wires around the baseboards and up over the doors (only one on each side) so what is the best method of hiding those cables? Does someone make a hollow baseboard that could be used to run the wires thru? Thanks in advance for the help!

Here are a couple links

http://www.hometech.com/techwire/resigard.html#wiretracks

http://cableorganizer.com/wiring-solution/

I was able to run some of my speaker wire through a low attic. For the rest I used an item called Cablemate, which is a plastic sticky back channel. Comes in kits of various sizes or singely. Put out by a company called Wiremold. Looks ok when run along a baseboard, and can be painted. Available at Home Depot and probably Lowes.
Tony

I finally got a long, rectangular room to darken and make into a tv room. Problem is, the walls are plaster so no dropping wires down from the attic, and the house is built (for some odd reason) very close to the ground, making it pretty difficult to crawl under the house to come up thru the floor. I guess I have to make do with running the wires around the baseboards and up over the doors (only one on each side) so what is the best method of hiding those cables? Does someone make a hollow baseboard that could be used to run the wires thru? Thanks in advance for the help!
With a bit of sweat and blood I'm sure you can use the attic approach.

Drill a hole where you want the wire to go through. Then, feed an electricians fishing line/straighted wire hangar into the hole and up into the attic. Tie/tape/somehow attach the speaker wire to this thicker wire, crawl into the attic, and get your pull on.

I installed crown moldings and ran some of the speaker cables around the room under the crown moldings. I was able to drill through the wall and drop the cable down to the right level and then drill a second hole behind the side speakers to recover the cable. My equipment is in a rack in a closet so I could go through the wall at the top of the closet to get behind the crown molding. Once all the cables were in place and checked out, I installed the crown molding.

..Doyle

I did the same as DoyleS, used crown molding.

Here are some before and after pictures of the process:
http://www.avsforum.com/avs-vb/showthread.php?p=8978599&&#post8978599

Note, this is a foam product which looks exactly like wood once installed. It is very inexpensive and requires no mitering to install.

I've run flat wire under carpet using my tape measure to fish the wire back. I just went straight back from the shelves the amp was on to behind a sofa, then split out to left and right rear speakers. The advantage of using the tape measure was that I could track it's progress by watching the small bump made by the end. When it got to where I wanted it I made a simple slit in the carpet and pulled it up to attach the wires to. Below both the carpet and pad, no one could tell the flat wire was there. It was also easy to pull out when I moved, with no apparent damage to the carpet.

Here are some places to check for hiding cables

ChordSavers

LevelAdvice

I ran the speaker wire along the baseboards. I used a router to cut a channel on the inside of the boards, below the nail holes, and the wire fit perfectly. Running the 20ft of subwoofer cable was a different story, because of the cable's thickness. I had to lift the carpet and cut a one-quarter inch channel in the carpet padding. The heavy-gauge subwoofer cable nestled nicely in the padding and didn't show any bump in the carpet. If you stand on it, you can barely feel it. Works well if your padding is decent.