enterprise backup system recommendations

[Anne Moore]

Hi All
 
I was wondering what you are all using for your enterprise wide backup
solutions. We actually don't have a solutions in place technically (I just
back up everything to network shares). 
 
We have money now to purchase a robotic tape library and tapes, but we are
not sure what has a solid working reputation that is compatible with
Unix/Linux and Windows boxes.
 
What robotic library tape systems are you using? Would you recommend it? 
 
Thanks for your help.
 
Anne