cyrnel

The combination of a cantenna with a 1.5W amplifier setup like this:
<a href="http://cgi.ebay.com/12Ch-2-4GHz-1-5Watt-Wireless-Video-Camera-Transmitter_W0QQitemZ9700186957QQcategoryZ48629QQrdZ1QQcmdZViewItem"></a>

would provide far better range than the combo they posted. A parabolic would absolutely destroy them. I think you'd be fine with a cheap 100mW transceiver pair and a parabolic. Spend the extra $100 for the big amplifier if you get tired of aiming or if you encounter interference.

BTW, use a regulated power supply, at least for the camera. Image quality drops off quickly with voltage. Same applies for the transmitter if you're at the range limit.

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