Hello everyone. I have personally found that the following tips work for me in my own home environment.
1. Keep cell phone 10 feet away from computers and just waring my BT headset. Depending on your cellphone plan you can easily have these calls forwarded to a skype line of some sort. Which will reduce the need of having to have the cell phone near the computers. You can also use certain software to forward SMS alerts to the computer you are using.
2. Update WiFi card and other driver updates for your personal machine.
3. Updating Router Firmware as some of the updates will help improve stability and performance. (Check your router manufacture website for more info on firmware updates.)
4. Changing the Radio mode from Mixed mode to a more precise mode. Like B/G only, G only, B only, N only, etc.
5. Changing the channel on the router from Automatic to a channel from 1 to 11. In hopes of hitting a channel that will pose less interference with cell phones
6. As stated earlier if needed you can activate Interference robustness on Airport Routers, and on the Tiger OS
7. Raising the router and re-locating the router to provide better signal will also decrease potential drop outs and disconnects with the computer.
AirPort: Potential sources of interference
http://support.apple.com/kb/HT1365?viewlocale=en_US
http://docs.info.apple.com/article.html?path=AirPortUtility/5.1/en/ap2072.html
http://support.apple.com/kb/TA25977?viewlocale=en_US