>>Yes... what does your disk storage look like?
>
>The disk is a n/a Fiber attached SAN 600 GB.

Ouch... I guess you do not have much control over it then.
I guess you do not have much control on whether your transaction log is placed on the same physical disk. Placing it on another physical disk would increase the performance of your insert, delete and updates.

How about increasing memory available to SQL ? If SQL can cache more of your database in memory, it should in theory also speed up your normal queries.

You could play with isolation levels, to tweak performance as the lower levels issue less locking, but OTOH could cause concurrency issues. I'm not fond of doing that unless there really is no other choice.

Walter,