I'm looking to do more weights and Abs but I'm not sure how many reps to do with them and how many lifts/crunches etc to do with them. What's a good set?
Check out my topic post: Resistant training. Maximizing your goals. It spells out the amount of weights, sets, reps and rest times if you are looking to build power, strength , size or endurance.
Your abdominals should be conditioned for endurance(20 + reps)
8 -10 is good, by the time you hit your last set 10 should not be easy, if you get it..
As a general rule if you want to tone then do reps in the 10-12 range with light weights but if you want to build muscle then 6-10 with heavier weights.