As I worry as much as you, sam, I will tell you what I am not eating.
Prawns, which I absolutely love, liver I wont touch, pate, soft cheeses, Im a bit funny about mayo, I dont eat fried/soft boiled eggs and that's pretty much it.
I havent touched a drop of alcohol in 4 months now and I intend on keeping it that way too. My partner even tried to convince me to have some labrini at his birthday bash on the 23rd but I even considered that to be a risk (its only 5% per bottle, if that)
Its really upto you what you eat, aslong as you feel you're not hurting yourself or the baby it's fine.
I have been on a grease diet for the last 2 weeks, mainly sausages and eggs but everything is fried, plus im not eating veg but have been advised to stay on pre-natal vitamins. Some people say that the grease diet im on will harm me and the baby, but so far theres been no proof of that as my full blood count levels came back normal *shrugs*.
Oh and if you like crab sticks but are worried you cant eat them because its 'shell fish', thats a pile of crap because theres not one ounce of crab in those things and it doesnt even contain fish!

Sorry to babble. x