The jockeying over whose infrastructure bond package is the right one continues, with Assembly Speaker Fabian Nunez today weighing in for an approximately $30 billion proposal, less than half the amount proposed by Governor Arnold Schwarzenegger.

Nunez told reporters today that Assembly Democrats agree with Schwarzenegger on some issues– but not all. While more than half of the governor’s bond plan would go to education (K-12 and higher education combined), those areas would receive about one third of the money under Nunez’s proposal. Percentage-wise, it appears most of the bond money in the Assembly Democratic plan would go toward transportation projects (these are only rough numbers provided so far by Nunez’s advisers).

This is the second Democratic proposal, following in the footsteps of the plan from Senate President Don Perata that was originally introduced last year.

Nunez said today that common ground exists on the bond issues related to education. But it appears there are a number of other issues that remain unresolved, and thus likely to be at the center of the real negotiations:

* How Long? Democrats continue to reject the governor’s suggestion to place the bonds on statewide ballots through 2012. Nunez today said that his plan would call for all of the infrastructure bonds in the next 2 election cycles; Perata’s bill currently calls for placing his version on the ballot only this year.

* What’s Is/Isn’t Included: Both Democratic leaders want to include projects related to California’s affordable housing woes, a subject not dealt with in the Schwarzenegger plan. Nunez and Perata have also spoken at length about more funding for public transit, instead of just traffic congestion relief.

Meanwhile, the governor has proposed bond money for expansion and upgrades in public safety facilities. Democrats have pretty much rejected such issues as not a priority, with Nunez today saying that the governor’s plan on this issue isn’t “ready for prime time.”

In short: there’s a lot still in flux on the issue of infrastructure ideas. And a quick check of the calendar shows not much time left for a deal to gel for the June 6 primary ballot: the deadline to get something on that ballot for voters to consider is March 10… only 17 days from now.