> A quick question does anyone have or know of any tools for 
> checking for
> overlaps in the RIPE DB for a given range of addreses?

The tool is called email. Send a request to RIPE and they will only be too
happy to use their auditing software to send you the details of overlapping
objects. :)

Regards
Denesh
-- 
Denesh Bhabuta, AMISM
European Internet Services Group
Level (3) Communications Limited
+44-20-7864-0498 ; denesh.bhabuta at level3.com