hmmmm More expensive, and no iSight. It does allow for more connections, but it is not an ACD, and MDP is the future.
Yes, it doesn't have iSight. To me, BFD. The 30" ACD it replaced doesn't have iSight, either. The Dell probably wouldn't look as pretty on a desk, but I suppose some people have different viewpoints on aesthetics than others.
The Dell also supports DP (standard-sized connector; easily adaptable) for future graphics cards.
The point I was trying to make was that the OP would have to jump through hoops just to make a 27" ACD work with his 06 MP. His options would be:
1. [more expensive] Get an official Apple Radeon 4870 card (it works on older EFI-32 systems like the MP 06-07, despite what Apple says). It looks like Apple still has them available on their online store (just checked), but they're $349. Add the cost of the 27" ACD and he'd be sitting at $1,348 before tax and shipping. The advantage here of course, is that he'd get a much faster GPU in the process.
2. [cheaper] Buy the Gefen or Altona DVI to MDP converter. Both cost around $150. 27" ACD + converter would be around $1,149 before tax/shipping. With this option, he'd continue to use his 7300 GT card.
Then, there's the Dell U2711. Same panel as the 27" ACD, works with practically any graphics card, etc. The only thing it doesn't have is a web cam. It's currently $1049 at Dell. So yes, a little more expensive than the ACD, but it's still $100 cheaper in the long run than Option 2 above.
Just something to think about. I just fail to understand why so many people perceive Apple displays to be superior when that isn't always the case.