You should be doing cardio anyways, 2 times a week is fine when bulking IMO. Just to keep some of the fat off and more importantly keep your cardiovascular system healthy.
Like HHM said, how much fat you gain depends on how much you eat. Start at around 3000-3500 cals a day, and increase it by 500cals a week if your not gaining. Then take it back 250-500 cals if you think your gaining too much fat.
I like to keep my reps between 6-12, it really depends on the exercise and how I feel. For compounds lifts I go heavier with lower reps, but for isolation exercises I go a little higher, same thing for dropsets/supersets.