You can run any kde app in gnome or any gnome app in kde. You just need to yum install and it will take care of the dependencies( I run klibido in gnome). The big problem with klibido is that it tends to flip out a couple times of year thinking that your storage drive is full. It is a known bug that has been around for a while.
The newer versions of pan are pretty good (I am running 0.131 now). I run klibido just because it is about 20% faster on downloads.
Another one you can try is ninan. Handles .nzb files and is very handy if you have a Newzbin account. Just add the report number to ninan it will auto download, including any necessary par2 files, auto repair and extract.