I.G.
I am a big fan of putting kids 2 and older in play based pre-school setting. After two they really benefit from having peers to play with and learn from. At this age (2 and 3) social learning is MUCH more important than academics.
I am going back to school next year and hope to enroll my daughter in pre-school in the mornings (she is in daycare now, while I work) and have a sitter or trade with another mom some additional hours in the afternoon.
Good luck!