I'm in the market for a new monitor, and my prime criterion is one that is good for photo-editing. How much thought do I need to put into this? There are a lot of parameters that don't mean much to me... contrast ratio, refresh rates, etc etc. Is there a minimum requirement I should keep in mind before I go buying whatever is on sale at the local computer shop?

Any recommendations would also be welcome. I guess my budget is pretty lean... around the $300-$400 mark. I'm not fussy on size, but at least 22inches would be nice.

I had a look at Dell, and can get a 24in HD for $299 or a 23in 'Ultrasharp' for $399. Any thoughts on whether the extra $100 is worth it?

All advice greatly appreciated.

Ged