I envy you!!! anyway, why not Bahir Dar? In Addis, there is a club know as " Ye Mesafent bet" in Bole. It is a nice night club with a nice band and show. I enjoyed dinning at the Millenium Restaurant. They have good food and entertainment. Awassa is nice for two or three days. I don't know how deep your pocket is, but I stayed at Chambalala hotel. It was $17 USD a night. Queen bed, TV, refrigerator and decent bathroom. You might want to visit Sodore if you like to horse ride for about $2.00USD for one hour, but I didn't go in the pool. Find "Azmari Bet" especially in Addis.....it is always fun.
Please bring tones of picture and share them with us. Enjoy you stay.