Vista or Win7?

[jbiethan]

I'm looking to have a text chat with someone that's migrated their business class WinXP users to Vista.

My current user base of 25 has WinXP and for reasons of security I'm trying to decide:

a) on going to Vista now and then upgrading to Win7 when a stable version is available

b) or waiting for Win7 when it comes out

Ideally, you would have done this upgrade with one of these case scenarios:

a) a user base of 25 to 100

b) a user base of 101 to 250

c) a user base of 251 and up

I'm wanting to know how it went and:

a) How long did it take?

b) What were the unforeseen problems?

c) What hardware platform were the machines coming from e.g. Duo-Core, Older P3's, how much RAM, Processor speed etc.

Any help sharing your experience would be greatly appreciated.