We have a webservice that sometimes gets inundated with requests from an APEX trigger we have.  So, we wrote a .NET batch program to do the requests via API through SFDC with a 45 second delay between requests.  We'd like to make that a Batch APEX, however, I can't find any way to make the APEX code pause between submittals.  I tried a loop checking on the time, but that causes 200K worth of script statements which exceeds governor limits too.

Does anyone have any ideas?

Thanx!