You can always google for the deps, just make sure that you mention the whole package name, along with the versions (also make sure they're compatible to your OS). One pretty solution that I use for downloading packages is this website
There you'll find your search results listed, along with the name their compatible OS name and version. Cuts out lots of confusion.
And here's how I did created local repository for RHEL6. My reposiroty not only contains the DVD packages, but also other packages I've downloaded. Here's how I did it.
1. Mount your disc, install the vsftpd package
2. Create a folder in /var/ftp (assume the folder name is 'folder')
3. Copy all the DVD packages in this folder, also copy the packages you have downloaded, along with their their dep packages.
4. Open terminal, and
# cd /var/ftp/folder
# rpm -ivh deltarpm*
# rpm -ivh python-deltarpm*
# rpm -ivh createrepo*
5. Then create the repository
# createrepo /var/ftp/folder
This might take a few minute
6. Create a .repo file in /etc/yum.repos.d (free to choose any name for the file, just mind the .repo extension, it's not a hidden file!)
The file content should be like this
7. Start and enable the vsftpd service
# service vsftpd start ; chkconfig vsftpd on
8. Clean the yum data
# yum clean all
9. Test the repository
# yum repolist
That should do it, it works for me flawless.
If something goes wrong, the STDOUT will say 'repolist: 0', in that case, check your steps again
You can also share this repository with other computers in the network.
Just create the .repo file in their /etc/yum.repos.d, all you have to do is change the 'localhost' in baseurl with your own IP address.
And also allow the FTP service through your firewall.