QUnRpm is an easy graphical frontend that allows you to extract one or more files from RPM packages and view details about them.
You can download the source code from SourceForge.net and compile it with these commands:
$ qmake (qmake-qt4 on Fedora)
# make install
You can also install it on Fedora 15 using my repository:
# cd /etc/yum.repos.d/
# wget http://download.opensuse.org/repositories/home:/Faster3ck:/projects/Fedora_15/home:Faster3ck:projects.repo
# yum install qunrpm