I do not think there is a graphical tool for samba, I have setup samba via command line and it is not too complex.
for samba install:
yum install samba
*note there are other packages for samba as well, like domainjoin-gui ect... (never used them only command-line)
These services will need ipchains rules in netfilter for them to allow communications as well.
I also have setup mdadm via command line as well.
You can open up a new thread on there individual topics for assistance.
(opening up a new thread is following the policy of the forum)