Thanks guys, i had the orange roughy and it was yum yum yum! Dh cooked it up with lost of garlic (thankfully garlic doesn't effect DS phew)
Decided not to have the prawns though, i figured the fish + prawns might add up to too much mercury. I wasn't too sure about eating the fish but Dh persuaded me plus i've read that its ok to have orange roughy as long as i don't eat any more fish this week (its written on a little card i got when i booked into the hossy so i guess it must be right).

I've got some killer garlic breath now though...poooooweeeee!