First things first, as this has already happened there would be a certain amount of honour involved to not just cheat and go look up the mathematically best team and go from there.
But assuming everyone who plays does so in the spirit in which it is intended, here's the vague plan
I have the following stats available for every week of the 2006 NRL season
Tackles, Offloads, Kicks, Line breaks, Metres gained, Errors, field goals, goals, tries
I will use these stats to create a fantasy-like scoring system, and people will create fantasy teams on which to compete in the season.
Team structure TBA (might just be a straight 17 scores because running NPRs and subs might be too hard, will see how it goes)
There will be a salary cap based on 2005 stats (with a possible cowhub price boost for players that would otherwise be autopicks given everyone knows in general how the season went)
Will update scores and table probably simulating 2/3 NRL rounds a week, and give people opportunity to make some trades (exact trading system tba, not sure if/how I would update prices)
Suggestions on how to run things welcome, nothing is really set in stone yet, but a lot will depend on what is possible for me to do, and how many people want to play.
If you want to play, post your interest here, and assuming there are enough starters, I'll put up a price list later in the week