I don't have swinging doors. I have three stickers I use on my PC. The AMD sticker is on the left front of the case somewhat near the bottom but not that low. I also have the Creative Audigy 24-bit sticker underneath the AMD one. I have the Gigabyte motherboard sticker on the back of the PC under the power supply and next to the PS/2 connections. Its got a clean look and I like to keep it that way by not overdoing it. I love it when I have people coming by and they see that 24-bit sticker. They want me to crank it up to show them the power of my sound system.
I use the THX and DTS demo that came with my sound card and totally blew them away, hehe. Got to love it.