What adapters do I need, specifically do I need an (active?) mini-Display Port to VGA adapter OR an (active?) mini-Display Port to DVI adapter?
Mini-Display Port to VGA adapter is not active.
Mini-Display Port to DVI adapter is active.
I believe you can use either. Mini-Display Port to VGA adapter will not give you the blinking DP display issue (apparently) YET the display quality may be degraded as it's an analog signal. Cost ~$30.
Mini-Display Port to DVI adapter gives a digital output. Cost ~$100.
IMO, go for the active Mini-Display Port to DVI adapter.