looking for Ubuntu expertise: assumptions: all servers and clients are running ubuntu 10.04lts server or desktop (please feel free to comment on any item) 1. primary domain controller running openldap, managed by webgui 2. nfs and samba server (for the few windows boxes, around 5). home folder mounted as a separate partition (need to enforce quotas) 3. around 25 desktops (home directory pathed to nfs/samba server when they log in) 4. backup server for the pdc and file server and sql server (db is around 30gb compressed), must dump to a nas and a tape (offsite backup, manual intervention of changing tapes at 8am daily). backup and restore should be easy. 5. backup of pdc, files server and backup server (virtualize?) (auto failover if available) 6. users can print to a central fax server (with two usb modems?). incoming faxes are centralized, reviewed and dispatched to users. (auditing for what users printed, how many pages, what doc if available, softcopy of all records) 7. one update server for the client desktops (to save bandwith) 8. Print audit, who print, what, pages, with report summary. softcopy of all print requests if available 9. hardware design? dell r710? 10. manage, alerts (email when errors occur like system stopped unexpectedly...) 11. all processes are automatic security concerns are important. please feel free to recommend, we're looking for a best practice setup and some additional features. if there are other, then please do recommend. can you please point me in the right direction for a person that is qualified to do this systems infrastructure? thanks! andrew