Just a quick follow up for this question...
It's been a month since I started using Vim as my main 'GUI'
tool for programming C++ in Linux. At first the learning
curve was indeed a bit steep but after a while and with the
right options turned on and scripts running I really
got the hang of it!
I love the way how you can shape Vim to suite your needs;
just add/change key mappings and Vim is turned into a
highly productive 'IDE'.
The toolchain to build and compile a C++ program on Linux is
also really intuitive. make and g++ are the tools you'll
use.
The debugger ffffd is however not really that good, but
maybe that's because I haven't had the time to master it
properly.
So to anyone who is, or was looking for a good C++ IDE in
Linux, just like I was, your best bet lays with the standard
available tools in Linux itself (Vim, g++, ffffd) and you
should really at least try to use them, before looking for
sonething else...
Last but not least, I really want to thank konrad for
his answer here, It really helped me find my way in the
Linux development environment, thank you!
I'm also not closing this question, so people can still
react or maybe even add new suggestions or additions to the
already really nice answers...