Only you can say what will be best for you Pock. There is no right or wrong time to give up smoking.
I gave up both at the same time, which usually makes people do a sharp intake of breath thing. I knew from my own experience that I couldn't give up drinking if I was still smoking. However, like rdytoquit says, the booze has to be the one that sticks. I had one cigarette since I quit but I still haven't drunk.
Good luck whatever you do x