I also use 2 17''CRT monitors.
A brother sold me one a while ago cheap and did nto know what to do with it!
To be honest i got the idea of dual screen here, thanks BBS!!
Anyway, I use for lots of reasons!
I have 2 PC's. One is on the internet and the other solely for music purposes!
THey are even not in the same floor(i live in a house)
have setup a remote desktop connection. SO i am basicly all the time in the studio surfing the net (reading BBS

) when i am not recording!
And when i am recording i use 2 monitors solely for audio, i minimize the remote desktop connection!
I use 2 monitors for audio, msotly i expand the Nuendo window on both screens so i can see the mixer, all the plug-ins, transport, constatntly without going to the background.
And it's also cool, because i can play with another program at the same time, like Reason.
Anyway, the only problem is i would like to replace them with 19'' LCD. Once i have the money that is!
