SQL Server Workgroup Edition
Interesting info about Microsoft's creating Sql Server Workgroup Edition. If I read the info correctly, it will support 2 CPUs, 2 gigs of ram, and unlimited database size.. Wow, that is going to work well for a lot of places.
http://www.eweek.com/article2/0,1759,1769452,00.asp
http://www.microsoft.com/sql/spotlight/expandsqlserver.asp
Update: Its 2 gigs of ram for Sql 2k and 3 gigs of ram for sql 2k5.