Mixed distros in one cluster

[Simon Hogg]

Is there an inherent drawback in using different distributions in one 
cluster (apart from more complicated maintenance)?

They should all work together, anyway, right?

Suse, Redhat and Debian is what I've got - are there any special 
considerations for this combination that anyone can think of?

Of course, I will migrate everything to one distro at some time (probably 
Debian) but different people want to 'play' with different distros, and 
this is not a production cluster, so it might even make things more 
interesting!

--
Simon Hogg