I can't even tell you how much I love my pressure cooker! It's so awesome for cooking beef, lamb or chicken so it's fall apart tender.
You might want to try the Pressure Cooker Gourmet. Also, search your local library system for pressure cooker cookbooks. That's what I did and then copied recipes from a few different books.
I tried to make pulled pork and it was a disaster. I followed the pressure cooker recipe but I think I was still adjusting to the whole "bring to full pressure" phrase that you'll see in every recipe. I'm sure I had the flame too high so the pork was burned black. I'll have to try it again.
Have fun!