Will I have to give you guys my BTCE keys?
.. Since: let us make this clear from the start: I wont

Good question. An no you don't have to send us your key.
You can just setup a new API key pair (key + secret) on
your BTC-e account (alternatively, you can of course also create a
dedicated account, just for leonArdo). By sending us the first half of your
secret, we can ensure that leonArdo just works with your BTC-e account.
So we don't need your key at all.
I hope that helps!