recommended hardware as a WWW server

I am not sure if this is the proper mailing list to ask 
a Web server question. If it is not, I would appreciate 
someone directing me to the right one.  I am looking to 
buy some hardware and software to have a better Web 
site. I am wondering if anyone has any advice as far as 
which machines are recommended.  I have done some 
research, but I would like someone that has experience 
in this type of decision-making to respond.

Thanks,
Karen
Karen@vax.ebsco.com