Essentials like MDF bases and tufts came first, 15mm walls from Debris of War and then a couple of great character figures from Gringo40s. The surprise purchase was the Sudan scenario book, this will be great for TMWWBK.
I managed to finish the ACW casualty markers, complete with horses, Union and Confederate, all with Minibits 7mm frames.
Last year I bought some great buildings from Leven Miniatures, great models and easy to paint. Here's the first few themed for ACW.