I need a new server distro

[Michael Hipp]

Can anyone recommend a distro suitable for use in a small server:

1) Simple easy-to-use installer
2) Server install has no GUI anywhere, everything can be done by ssh cli
3) Knows how to configure software RAID in the installer and boot 
degraded afterwards and I never have to touch an mdadm command unless I 
just want to
4) Fairly up-to-date server software stack (e.g. samba, postgresql, 
postfix, rsync, etc.)

Thanks,
Michael