I'm not saying to follow the exact example I wrote in the HST thread, but pick your favorite exercises that follow the same basic idea. For example, I would not recommend doing 15 rep deadlifts or barbell squats...Or touching a barbell at all for that matter. Dumbbells are the best choice for the 15's for the greater range of motion as well as a lesser chance for injury.
Basically, the 15's are only utilized for the lactic acid buildup which strengthens joints for the heavier 10's and 5's. Most people don't grow during the 15's. View it more as a preparatory phase. That's why a lot of people choose to only do a single week of 15's (or like me..Do a 12/8/5 RM mesocycles.) If 15 rep rows and pulldowns don't work your biceps...
Nothing will!
After your 15's, the 10's and 5's are when you can start exercising more options such as adding in a few more exercises as well as maybe an arm exercise or two. During the 5's is when all bets are off...Go hard and heavy adding in whatever you wish as long as you don't need to pack an overnight bag for the gym.
[No more than 60-90 minutes] Optimally, you don't want to be in the gym longer than an hour, but just take some BCAA's and you'll be fine.