It seems like you want it all, which is normal but not realistic. It seems like you're doing well, getting stronger and bigger. I'd recomend sticking with that for a while. As was said, your arms will start to grow as the rest of you grows. No one would call my arms small, but I don't do any direct arm work. Deadlifts, rows, anything that hits your back is going to build your biceps better than any curls will.
As for your love handles, don't worry about those for now. Get bigger, get stronger, then later on if you want to shift your focus to leaning out you'll have the muscle to look good lean.
Basically, if you've got something that works, stick with it until it stops working.
Current PRs at 242- 495, 345, 585, 1425