I think you would be fine with one more rod and reel (uless you have cash to blow)
Chances are you pobably wont be targeting musky right away (if you do you need heavy gear - some people will use up 80lb braded line)
Your best chances of success are perch, Crappie and Bass - you can catch these with light to medium gear, although I use at least 30lb braided line on my regular setups.
If you want a challenge, go for musky, but make sure you are well prepared (leaders, plyers, nets, bravery, heavy line)