For WSS/SPS/MOSS, the database is just a secure, transactional repository. They
don't capitalize on or prohibit the use of ancillary capabilities (like cubes).
What features are you looking to use?

I realize that this thread was abandoned however, the question comes
forth once more regarding SQL Server Enterprise edition  versus
Standard edition and what the recommendation is.

Much like the original poster, we've used SQL EE 00 for the clustering
capability. Is there any wow or really good reason to go with SQL EE
05 for MOSS 2007 large  farm implementations?

The amount of memory you can use ?

Well, its not the amount of memory

You can get a product comparison here

www.microsoft.com/.../comparison.mspx

Large (>500Gb) db fast query support could be important if you have huge db's

Database snapshots could be useful

The mirroring in enterprise  is better than with standard  - mirroring generally
has faster failover than clustering which has to replay all of your log files
and is cheaper to set up

Generally, I think Enterprise is useful for very large  DB's (in the Tb range)
so if you distribute your site collections amongst DB's and put enough memory in
and have a fats disk sub-system, I don’t know that there's any real benefit
with a reasonable sized moss  implementation - i.e. while there are some benefits
I don't know that they outweigh the cost of the editions.

Thanks for replying to this old post of mine. We still have a little time before
having to choose which version of SQL 2005 to purchase so if anyone else has an
opinion or experience with this issue - please me know