Found these on the site for a shop I'd never heard of, and I thought they look pretty good! Seems to solve the problem of high humidity in wood effect vivs...

Water Resistant Vivariums

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0.1 Royal Python - Mandela
1.0 BCI - Superhans
Lots of baby Beardies, German Giant X Hypo - Available in 4 weeks, taking deposits now!

Don't know how expensive fibre glass is but it looks like it's just a wooden viv lined with it... so if you could get your own fibre glass that could be a neat little DIY project. Price on request suggests it could be a bit pricey though. Possibly easier to clean also, and harder for mites to lay eggs or hide on fibre glass than in wood.

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No internet at home for a few weeks, may take a while to respond. Should be back to normal in Sept.