I went ahead and added gtk-qt-engine and kaffeine to the EPEL wishlist:
http://fedoraproject.org/wiki/EPEL/WishList
juk appears to be part of kdemultimedia-extras in F7 (only kdemultimedia is available in CentOS/RHEL), so I added that as well.
Thanks! Maybe KPowersave wouldn't hurt, see here how to build it, it however needs a newer m4 than provided by RHEL5 (available in SL5 though): http://listserv.fnal.gov/scripts/wa.exe?A2=ind0706&L=scientific-linux-us...
R-C
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