Suggestions for OS to use behind freebsd pf firewalls.

[eculp]

I have installed freebsd server in a small company that has approx 30  
pc's of all sizes, shapes, brands, etc.  They have just realized that  
a large part of the problems that they had before the firewall was  
caused by the 30 windows pc's that were connected directly to the  
ISP's wireless router.  They would like to change the PC's to unix  
desktops.

I would like to install FreeBSD or any other bsd but don't feel that  
we have the drivers available to substitute such a wide variety of  
hardware.  I would love to be proven wrong.  Therefore I am  
considering a linux version with a graphic installer that will make it  
easier to train someone to install on any new machines that they add  
later.  My problem is that I haven't done a linux install since before  
FreeBSD 2.2 IIRC and have no idea which version would be the most  
versatile and has an installer that is basically brain dead simple  
with most all drivers.  I suspect that I am asking the impossible but  
you never know.

I'm sure that I'm not the only person to run into this situation and I  
would sure appreciate any suggestions.

Thanks,

ed