1. As long as you perform DML operations in small chunks it should'nt be a problem.
2. Since the snapshot uses sparse files it the more modifications you perform to source database the more the snapshot grows in size
3. Yep I agree
4. Difficult to answer. I think you might end up running out of disk space if there no available disk space
5. Nothing else I believe.
[font="Verdana"]- Deepak[/font]