Thin clients can range from as little as $200 up to $800 each. Pricing depends on what you are going to use them for and what you are connecting them to (most are used with Terminal Services (Microsoft) or Citrix)

Watch your licensing costs as well...Microsoft requires a different licence for connections.

Without knowing what you are connecting to and what you will be doing with them, it is very hard to tell you what will work.

If you have any questions, or would like some help, feel free to contact us:
info@bttllc.com

Source: http://www.bttllc.com