Hi! I also have GERD, and can tell you when I was pregnant with my son, my heartburn soared. But after the first trimester, it seemed to settle down. I was actually more comfortable pregnant than I am now! But I know many pregnancies are different, so maybe your heartburn won't act up.
Have you read about a new procedure called Enteryx? It's an out-patient surgery that's supposed to have really good results. It does have some side-effects, but nothing like laprascopic fundolication. You can read more about it at www.reflux1.com I'm actually going to see my Dr. to discuss having this procedure done myself. It seems much less invasive than the usual surgery.
Best of luck and I hope this helped!