Cutting the cable, but now where do I get my racing?

After thinking about it for a few months we've decided to cancel our cable TV and go the Apple TV/HDTV antenna route and save $120/month. With the HD antenna I'm able to pick up CBS, NBC and FOX (yay football!) but no ABC (boo, IndyCar!). Hulu Plus includes NBCSN and I assume FoxSports 1 (their website still lists SPEED), but I don't know if that includes live events.

So younger, more tech savvy Jalops, where can I get my racing fix?