Dell 24" or 27" Ultrasharp Monitor?

I will be buying either the Dell U2410 24" or the Dell 2709W 27" Ultrasharp Widescreen Flat Panel Monitor (I'm not interested in any other monitors for several reasons). I'd be interested in any feed back from users of either monitor, obviously from a photographic perspective. Any practical or calibration issues with either monitor (I use gretagmacbeth Eye-One Display)?

I think that the 24" might be a technically better monitor than the 27" but the Dell web site seems to go out of its way to describe the technical specs differently so it can be hard to compare. Any input would be appreciated.

Dell U2410 24" Ultrasharp Widescreen FlatPanel Monitor (S14U2410WAU)

Dell 2709W 27" Ultrasharp Widescreen Flat Panel Monitor (S142709WAU)

Thanks
JJ