bicep curls, tricep kickbacks, rows. You can google them
online to find videos of the exercises if you're not familiar with proper form, etc.. One site, for example, is: http://www.bodybuilding.com/ . (Don't be intimidated that the models are muscle bound! Just use it to make sure your form is good. You sound like you are pretty active, but for those of us who aren't, I like the "Absolute Beginner's Workout by Zuzana ( http://www.bodyrock.