Thank you all for your suggestions.
I will take the road through Corce-Tirane-Shkoder. After that, what do you suggest :
1) Shkoder-Podgorica-Kotor-Dubrovnik?
or
2) Shkoder-Bar-Kotor-Dubrovnik?
Unfortunatelly i have booked my hotel from here, (my mistake) so i have to sleep 7 nights in Dubrovnik. But its ok, i will make some 1-day tours, so i will be able to go to Krka and back in one day. Maybe in Zadar too. If i see that i am not getting too tired, i will try Plitvice. Also i heard Kotor is a nice place for a visit, and maybe Durmitor NP.
Fjaka, those are the best photos i've ever seen since i decided to come to Croatia! You should work for the tourist department or something!

Jeeves, thanks for the gps tip for Albania, i was afraid of that too.