You're going to want to stalk this page right here in order to snag yourself a console when the pre-orders go live again.
There will only be 50,000 of the limited PS4 Pro released, each individually numbered and packed with a 2TB hard drive, priced at 449.99 by defaykt, The DualShock is less limited but will cost you 54.99 and the official PlayStation Gold Wireless Headset is also being released, for 77.99.
Here's where you can find these:
Limited Edition PS4 Pro
Limited Edition DualShock 4
I'll update the list above if any more places put their pre-orders live, but for right now, these are your best bet.