There are a few cheap ones on ebay, if they're still alive pick up a bargain.
12 October 2010
Excerpt: I picked three of these up for my triple monitor setup, so I can safely say I've thoroughly tested them... all three of them. At £150 a piece they were quite a deal for 19" monitors. I picked them up at about the same time as my acoustic solutions TV. They're out of stock at most suppliers, but you can pick a few up on ebay for a reasonable price.