Ronin,any late model large displacement sportbike should get you up to speed if you give it the NO2.
As Hawkwind says--get the rulebook,go out and sit looking at bike while checking rulebook so you don't miss something simple.Pack spares,tools,lotsa water,and come on out.Be sure to pay attention to new leathers rule.
Or just go for 150 club as a way to get used to salt racing.It's got almost the same requirements(except the dumb new leathers)and you can run as many runs as you want to get over 150.
Where are you in CA?I am located in Vacaville and am prepping 2 bikes for this year.Be glad to help out.