With SL6 being close to released, I wonder what the ideas are about
which 3rd party repo to use. 

ATrpms? RPMforge? Or some other? Not all
can (or should) be mixed. 

Of course I read the info on additional
resources for CentOS
(http://wiki.centos.org/AdditionalResources/Repositories), 

But I am
interested in practical experience. 

Any thoughts on the matter would
be appriciated! 

Regards, 

Patrick