>>It appears to. We are using SQL 2005 64Bit Standard and Enterprise editions on a number of multiple XEON dual-core processor servers, and it really flies!
>
>Hot dang - Then I'll upgrade soon.

Just keep in mind, when you jump to 64Bit OS and Applications, you will likely need to upgrade AntiVirus and Backup utilities as well as hardware drivers! Not hard on modern hardware, but something to remember before you jump..