Thinking of going from my current 2 19" video monitors to a single 27".  Anyone done that?  Love to hear your comments.

Yes.
 
I think it sounds better.

Maarkr
Thinking of going from my current 2 19" monitors to a single 27".  Anyone done that?  Love to hear your comments.

 
I haven't gone from 2 to 1, but I couldn't be happier with my 30" Dell monitor.  Room for just about everything.
(well, I don't have any 80 track projects).
 
My 14" laptop is another matter.
 

I recently was using a 42" TV (720P) for a monitor and just recently went to 2 21" monitors.  I am liking the ability to have the console and PRV on the second monitor.  A 27" would be great, but if the resolutions match you might keep one of those 19" monitors for PRV or plug GUIs.

I would use all three monitors. Buy an adapter to handle it if necessary. Or just abandon one 19". You can never get enough screen real estate.

The purpose of multiple monitors is to separate various Sonar functions. Personally I run two 22" monitors(Samsung Syncmaster 226BW) with Track View on one and Console View on the other. I have a 30" LCD monitor on the wall directly above my desk and have thought about incorporating it into my setup but I would need two new videocards and new dvi switch as I have a dual dvi switch running the dual monitors between two computers. Cool thing is I have a wireless keyboard mouse set plugged into the unit so whichever computer is in use the keyboard and mouse work on that computer.
 
Bill

I currently run two monitors off of the on-board graphics of my motherboard.
 
1 is 32" and the other is 46" both are HDTV.  1 uses VGA and the other HDMI, and I have no performance bottlenecks or any issues whatsoever.
 
I keep Track View, with Inspector Pane and Browser on 1, and Console View and I just drag any plugin UI's around as needed.
 
The above works GREAT.
 
Cookie, you can run VGA and either DVI or HDMI from the same graphics card or from the on-board, with no trouble, giving you 2 displays from the same video card.  You could then have your 3rd display hooked up on your DVI from your other current card.  Give it a shot - it works, and even a plain VGA display is still fine for Sonar.
 
Bob Bone
 

Right now both computers have the same videocard with dual DVI that runs to the DVI switchbox that runs out to the two 22" Samsungs. I'd need cards with triple or higher monitor support.
 
*Edit- Both computers currently have one videocard :)
 
Bill

Yeh. I did do that briefly Maarkr. Went from two 19" screens to a 27inch all in one touch HP computer. It was good, and an improvement over the 19's, but I really missed being able to split tracks and console views. Concerns you probably already have no doubt. So the family gained a new PC for the living room, and I built another DAW machine, which has a couple of 24" monitors. Much happier. Expensive trial however. Can you borrow a monitor/TV and trial first?

Keep in mind that going from two 19" 1920x1080 monitors to one 27" 1920x1080 monitor is a downgrade.
 
If you go with one monitor you'll enjoy it more if you actually upgrade to a monitor that has more pixels than you are giving up.
 
For example; My single 4,096,000 pixel monitor is just about equal to two monitors that total 4,147,200 pixels
 
The next time around I'll buy a single monitor that has approximately 8,847,360 pixels.