Hi, just had a look into it on google and it doesnt look like it runs smoothly to say the least.
As a contractor I have seen many companies having problems with Vista.
I would advise very very strongly against moving to vista and ask you what extra functionality do you get for your money?
Goverment money should not be wasted by moving to Vista as it will only lead to problems…honestly.
Good luck, (I’m smiling in the office as I type this…you will need it)