IanY the 3007 is a IPS screen where the 24 is probably PVA. Supposedly the IPS has truer color (but opinions vary there). I prefer PVA and if Dell made a 3008 with a Samsung panel I'd already own one. Since they don't, I don't.

I have an older 24 now, 2405, and I find your comments on the 30" issues interesting. Perhaps I 'should' be aiming for the 2408. 30" seems the cat's meow though so hard to say.