Be careful with peppers, they are very easy to overdo. I used 2 chipotle peppers in a half batch of stout and regretted it. I've had it aging for over a year now waiting for the hotness to fade. I'd imagine that in a lighter beer like a pale ale it would be even easier to overdo it. It can be good if it's done right. Ballast Point did a version of their Sculpin IPA that had Jalepeno in it and it was quite delicious.