Firstly RB, I very much doubt if McNish will ever actually take part in a F1 race. Toyota have other ideas, and history with toyota already shows us that a contract means nothing to them (poor Minardi
)
It will be very tough for any Rookie to get in next year. Webber is the only one that looks close, and even that is doubtful. There is already way too much talent spoiling in the test seats for a rookie to sneak in.
That said, a whole lot of $$$$$$$$ changes everything. If a rookie gets in, this will have alot to do with it.