24". Two of them.
One you go dual, you never go back. I've had two 19" Ultrasharp Dell LCD's for around 7 years and they're still awesome; I just want to go widescreen.
I started with a rough budget of $200 each. I've now settled on a monitor that's $339 each and desperately trying to convince myself not to buy a set that are $499 each. :lol:
I'm a sensible shopper with everything but electronics. I just gotta have the good stuff.