Just to show all advice is subjective. In relation to the above:
I have not bothered with a maternity swimming costume (total waste of money imo) and just worn my string bikinis to the pool.
I have also carried on drinking in moderation, had a up to 4 halves of guinness per week (sorry Shimmy I laughed at your '1 tin of fosters' - I personally really don't believe less than a pint of 4% lager is bad, and have often had one during my pregnancy).
I didn't take vitamins as i don't really like them, and instead have just continued to eat very healthily, altering my diet at different stages ie middle tri lots more spinach/iron, 3rd tri omega 3/eggs/nuts/oily fish etc.
As for food, i have avoided pate and soft cheese but still had some on occasion (i have never had food poisoning from them before, so don't see why i would now). I have continued to eat seafood and rare meat.
Do not expect to have all the horrible symptoms people tell you about. I had sickness to wk 12 then felt fabulous since. People almost want you to moan.
I exercised throughout, swimming 3 times per week and walking an hour a day, along with yoga and gym. So don't think you are delicate and must rest all the time.
Have lots of sex, we never stopped - just became less energetic the closer to the end. 
Really enjoy the feeling of the baby and connect more with your partner.
These are all the things i have done and i feel fabulous :) Hope you do too.