Hi,
Don't know about Question 1, but as for 2: I have my MBP set up as a workstation at home.
I have my MBP perched on a little stand I made, and beside it a 22" Samsung Synchmaster (absolutely amazing screen for the price) which plugs into the DVI port on my laptop.
Then, apart from the magsafe, the only other connections I have are 1 USB connector which goes to a 7 port USB hub round the back of my laptop into which my external DVD writer, Printer, Scanner, External Hard drive, Graphic Tablet, Ipod, keyboard and mouse are plugged. (for those of you counting, my mouse plugs into the keyboard saving 1)
The other one is my book shelf speakers which is just the 3.5mm jack.
So when i have to take my laptop round to a clients house it takes me about 2 minutes to have my laptop shut down, disconnected and in my bag ready to go. Setting it back up is as quick. Everything else just sits there like a big desk docking station. At the weekends when I try to not do any work, I only power up my laptop and leave everything else turned off and just use it for iTunes or youtube. Because I work, live and sleep in the same room, this helpe me differentiate the weekend from the week as I don't have everything all fired up and running.
I have trouble with my eyes and have to wear glasses to study anything. it's not that I can't focus, it's that my left eye has a weak muscle and concentrating on one thing for long periods of time hurts my eyes and gives me searing headaches.
On the monitor side of things, the 22" Synchmaster I have is glorious. It has a seperate VGA connector and a switch to jump between them! this is great for me as I also have a PC which I use seldomly but when I do, I just power it up and switch over to it.
When I am reading something, I generally bring it up on the larger screen and then use the ctrl+scroll function to enlarge it a bit more, then i can kick back and read easily peasily.
Anyway, I'll stop going on about it, but i can heartily recommend the Synchmaster as aptmunich and chscag have above.
Hope this has helped,
Mel