Fall planning

I've been using some of my lovely, lovely free time to do some planning for school next year. I came to the conclusion a while ago that while we like Five in a Row, it takes a huge amount of prep work that I just don't have time or energy for this year. I'm not planning on giving it up, but we'll row less often and focus more on canned curriculum that doesn't require much more than opening the book and doing the day's assignment. I feel like second grade needs a bit more structure as well, which will be easier to do with more of a focus on daily assignments.

So, the plan so far:

Language arts: Daily reading, Reading Eggs, Writing With Ease volume 1, something for spelling (All About Spelling and Spelling Power have both been recommended to me)
Math: MEP 2A and 2B, plus some computer games to help cement basic math facts
History: Story of the World volume 1. I intend to start the year with some prehistory, along with a unit on dinosaurs for science, then move into SOTW. K has a lot of questions lately that would be addressed by covering the Big Bang and the concept of evolution, we'll start there and progress up to humans before getting into recorded history. I also intend to do some heavy supplementing and maybe take some time out periodically for American History, since SOTW volume 1 is all ancient history.
Science: This is the area I don't have plans to use a specific curriculum for. I think we'll spend another year following K's interests. If they tend heavily in one particular scientific discipline, I might look into a curriculum, but otherwise I think it's better to take a broad approach.
Geography/Social Studies: This will partially be covered along with history. We will probably include this mostly with any Five in a Row books we do.
Art/Music: This is the exciting part - there's a homeschooling enrichment center opening right near us! So based on the sampling of classes they had this summer, we'll be able to get Katherine into some good art classes (and possibly something music based, but so far she steadfastly refuses to take a music class). She's also starting ballet this fall.

I've been thinking a lot about what to do with Alec as well. He's doing preschool two days a week, but that leaves three where he needs to be occupied. I don't think three-year-olds should be pressured into academics, but he's really interested in letters and numbers, so it would be nice to find some "school" things to occupy him while I'm teaching Katherine, and also some stuff to do with him while she's on the computer. There are computer games at the library that can occupy him quite a while that he can do himself, so I'm looking for more computer games that preschoolers can do independently. Puzzles can keep him occupied for quite a while, so periodically getting some new ones should help. Beyond that, reading together and books that help him practice the alphabet and counting should make him happy while Katherine is working independently.

I can't quite believe the end of the summer is so close. We need to come to some decisions about our long-term schooling plans, but for now, we have the makings of a fun year.