If everything goes well, the DX version will be out at the end of the month. Sorry it's taken so long, but I hope it will be worth the wait.
As far as brushes go, I mostly do pixel art, so I probably not the best person to ask for digital art advice. But honestly it depends on what results you want. Since you are just starting out, the best thing to do is just try out a bunch of different kins of brushes and find one that you like. There's no "right" answer, so just use what feels comfortable for ya!