as it happens i've opted for the iiyama VM Pro 452, the model down from the 454. i considered the 454 but the extra speakers and USB ports didn't seem worth it; in built speakers are usually useless, the USB not critical, and the extra 2Kgs is undesireable. otherwise the tube is virtually identical.
i'm using a VM Pro 452 now (at work), and i can recommend it. its nothing compared to the higher-end products, but its good value for money as far as i'm concerned.
- qo.