SBS 2008 - SBS 2011 can access all the RAM you can give it.

Do note that SBS 2011, the latest version to be sold through December, is also the last version. Small Business Server is being discontinued.

HOWEVER, SBS 2011 will enjoy support all the way to the year 2020. So there is nothing wrong with going that route.

JamesNT

James Summerlin
My personal site: http://www.dataintegrationsolutions.net
james@dataintegrationsolutions.net