Hi Curt,
For SMB customers, Opportunity Influence Analyzer and Program Analyzer are included in the Standard edition. These two Analyzers plus Success Path Analyzer, Modeler, and Revenue Explorer are included in the Select edition. Pricing info here: http://www.marketo.com/small-medium-business/pricing.php
For Enterprise customers, all of the features above are included with the Revenue Cycle Analytics product, which is sold as an add-on to Marketo Lead Management.
TJ