eBay
Here are the cheap stands I use (Half Life):
http://www.ebay.com.au/itm/200956893...84.m1497.l2649
Here are the more expensive ones (BG2 CE):
http://www.ebay.com.au/itm/310580377...84.m1497.l2649
The cheap ones are really good. You can adjust the angle and then tighten it nicely