Hi there, I'm a graphic designer about to upgrade from a 20" iMac G5. I've settled on the 15" Macbook Pro and I now need a nice big display to do the work on. I need good colour reproduction. I'd probably use it for some gaming and _definitely_ for high definition movie watching. Are there any displays worth around $550 USD that fulfill my needs? I'd love to go for the Apple 23", but I'm wary of an older 2nd hand model and new they're very pricey. Cheers!