I already to this, i frequently post in the gnucleus forum
http://198.77.215.32/gnuforum/
I have offered my opinion on everything from auto-research (including some home made stats) to new features (such as a download manager) and the minor things that i would want changed.
With every release the gnucles client keeps getting better. I'm actually going to get a copy of Visual Studio so i can compile the latest source code (call it a beta i guess) so i can see where the next release is headed.
I'm thinking of taking some classes in programming also, so maybe i can help more.
I do what i can.
GBrayUT