Hi,
I just realised that I had not been making use of one of the most
appropriate/useful enhancements in Fedora 8 - DeltaRPMs.
Incidentally, it is not unique to Fedora. I believe that Suse
introduced delta rpm in 2005 and Mandriva also was using it.
The openoffice core rpm update was going to take over an hour. So, I
finally installed yum-presto plugin. The download time was now under
10 minutes!
It is a terrific tool and will be enabled by default in Fedora 9.
http://fedoraproject.org/wiki/Releases/FeaturePresto
Regards
Anil