Re: coffee - You can drink 2-300 mg. of caffeine a day safely - I was just told this today by a midwife. That means one espresso or 2-3 cups of regular coffee a day. So, don't feel you have to be totally deprived.
Sushi. I will miss sushi. Not that I ate it often, but it would be nice to eat it once in awhile...
Some of the other food restrictions aren't totally mindless - an acquaintance of mine did get a listeria infection from lunchmeat and went into premature labor at 34 weeks. Her baby is fine now, but a 2 1/2 hour labor and premature infant was pretty scary for her, and the docs. didn't catch her listeria infection for 3 days postpartum, which made her waaay sicker than if they'd caught it sooner. Her illness and baby's prematurity messed up their breastfeeding and it was just sort of a bad scene for awhile. So, salmonella, e. coli, listeria, not common, but they do crop up...