With many of the "cheaper" systems, your pump will be destroyed if you run your system dry--believe me, it is going to happen. They often are not less expensive at all. Check to see if the pump can run dry and not be damaged. Check also how long the longest misting session is. Many can't run for more than a minute or less at a time which isn't enough. You might look at the size of the droplets of water. The smaller the droplet size, the more "foggy" the mist and the more likely the chameleon is to sit in the mist to clean their eyes, which is one important reason to have a misting system.
Go to MistKing's web site and use their selling points to compare other systems. You can use their web site to check the droplet size for a reference.
I use mostly MistKing. I'm very happy with it. You can probably have one shipped over to the UK if they are not available there, but I'm sure there is a Brtish equivalent--you just have to look. Do a Google search for herp suppliers and start there.
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