Swains is awesome mate. Definately get on a charter out there if you can.
I dunno about the not going out wide comment earlier. It takes us 12+ hrs from gladstone harbour to swains. Usually a 7 day charter, 2008 we will be doing 10 days.
I think we're booked around june/july too. Our usual charter is march/april.
What boat are you looking at going on?
Heres some video i put online recently from swains>
We organise as a group for tackle. & buy bulk hooks 6/0 - 10/0, a few years we made a few hundred 1/4 - 1/2 lb sinkers but recently we have been buying these too.
Take your own rods & reels, I use 24kg overhead gear for just about all my fishing up there, from trolling to bottom bashing. alot of the other guys use alveys & spinners too.
Id suggest 15lb line as an absoute minimum.
Oh yeah we order our grog in gladstone, they bottlo brings it down to the wharf on a pallet.
If you go you wont regret it.
edit: A moderator kindly removed a link to a different fishing forum I posted where there has been previous discussion as to fishing swains. If you lookup sportsfish forums & search for swains you will find the thread.