Acoustica has released Mixcraft 4 with MIDI support as it largest new feature. The download price is $64.95 which is a bit more expensive than Mixcraft 3. Mixcraft still has a 7 day trial.
My earlier comparisons between Sony Acid Music Studio 7 and Mixcraft 3 had Mixcraft winning on the usability and Sony Acid winning for MIDI support. With Mixcraft 4, Acoustica has evened the score on the MIDI front and they are still in the lead with the user interface. Sony Acid Music Studio 7 has been slightly less expensive, but both of these products should be considered a good deal and both are now good candidates to be your Garageband for Windows.
I’m adding a link to the purchase page for Mixcraft. From here you can get to the download page and the product details pages.