I know that this is completely personal preference but which would you rather have? two 23 in. ACD's OR one 30 in. ACD? two 23 in. ACD's would give you more pixels of work space but the 30 in. is sooooo uber big and cool.
If you want to look cool you have to go for the two 23"monitors (although I personally voted for the one 30").
I have worked in tech for years and for some reason I have never been able to understand, it's not only a badge of pride to have more than one monitor, but your "coolness" or tech-ability is directly related to how many monitors you use. If you have multiple monitors, you are a cool manly geek, if you have only one, you are (apparently) a n00b.
Considering the existence of virtual desktops (available since the early 90's), and application switching, IMO there is really no need for such an ugly solution as using multiple screens and the edges in the middle always bother me anyway. As you say however, it's a personal preference thing.
I like to focus on only
one big screen that's placed in the best part of my field of view and use Spaces and task switching to keep everything in order.
I have been told over the years (and you may be too), that this is:
- the way a girl uses a computer

- "gay"

- indicates I am not a "real" computer tech

All of which is incomprehensible macho bullsh*t to me, but whatever.
