APIs to read/redirect spool data

Hi,

I am a newbie as far as the spool topic is concerned and am exploring possibilities of

1)redirecting spool output using ABAP to database tables of my own.

2)Post-process the contents of the spool either after redirecting to own DB tables or directly from the spool(is there a spool API to read/redirect output to somewhere else given the spool request no.?)

3)Create special authorizations on deleting a spool request such that users can be prevented from deleting their own spool requests.

Could anyone please help on one or more of these issues?

Thanks

Anuradha