I'm going through the same hunt right now. Looking through the archives I came across someone who found a very nice unit he says he got for about $110. I'm going to contact them tomorrow and get a price.
The site is http://www.sunpower.com.tw/english/index.htm
Look under Products, then PC, then SDX-100-12
It's a 100W unit and looks like it has all the bells and whistles. VERY nice.
Also found this:
The 150W unit is listed as being $85.50
[This message has been edited by ck42 (edited 02-02-2001).]