Hey sneaky,
To quote SirSquidness in the post Chairs (http://respawn.com.au/forums/index.php?showtopic=1092(
QUOTE (SirSquidness @ Jan 22 2010, 11:43 PM)

You are allowed to bring your own chairs.
If they are too big and obstruct walkways, then you will both be expected to exercise common sense and courtesy by not using it, and/or we will request you to remove it.
See you there
Also, during a previous discussion, the general consensus was no to dual screens unless one of those screens is a laptop.
Having said that, you get half a table length, so 2 screens would be pretty hard to fit on that unless one of them is on top of ur case, which is a pretty precarious position.
(Yes, I did tax that off Patryn and change tenses.)
Hope that helps you out, any other questions you have can probably be answered in The Jumbo Q&A thread (http://respawn.com.au/forums/index.php?showtopic=1184) or the guides on the main page (http://respawn.com.au/?page=guides)