It's very unlikely you'd be able to turn the make changes to the display's brightness control via Mac OS. I don't have my old Power PC Mac Mini (which only has Tiger on it) hooked up right now, but have you tried using the calibrator referenced at...
We in the US have no idea what the VAT is.... It's still irrelevant though. Find me a some retailers that sell it in the US. Besides that, it seems like a rip for a 22" 1680x1050 LCD which is an orange vs. an apple, in this case a 1920x1200 24" IPS LCD that's not much more.
Only problem is, who knows where the heck to buy it in the US? I can't find any place that sells it. I've never seen a Fujitsu desktop LCD monitor for sale anywhere in the US.
It's also not 24", not 1920x1200 (it's 1680x1050) and quite pricey for a 22" LCD. 330 Euros is == $436 USD
I'm having a tough time deciding between a TN-based Asus VW266H (currently on sale at ewiz.com for $255) and the ZR24w (I'd buy from a retailer outside WA state to avoid sales tax). The ZR24W at $400 is a bit on the high side for what I'd like to pay but it seems like a good deal for a ~24" IPS...