I know this thread is old but I stumbled upon it and I thought I would throw in my two cents...
I currently have over 1800 geek points at think geek becasue I went shirt crazy a while back. I do own the "there's no place like 127.0.0.1". I also own the "gamer" shirt and my personal favorite "I don't work here". (Which I wore quite often when I worked at the video game company I was at last summer and my bosses would always look at me funny.) I also own the "I will not fix your computer" shirt since my family considers me and the significant other their own 24 hour free geek squad.
I am now quite fond of the shirts available on jinx.com. They have wonderful items such as:
http://www.jinx.com/scripts/details....&productID=357
http://www.jinx.com/scripts/details....&productID=310
http://www.jinx.com/scripts/details....&productID=390
They have so much stuff too.... need more money.....