ShopToNet has bundles in stock. For example: FIFA 14 + Two dualshock controllers and a 500GB PS4. (This is the bundle I picked up) Here's a link for you: http://www.shopto.net/video%20games/ps4/PS4HW12-ps
amazon has just got some new ps4 in stock
I picked up a ps4 for my mrs last night from ASDA. Maybe if you have one near by its worth popping in and seeing if they have any in stock.
HMV Canary Wharf, London
They have loads available including solus consoles.
Solus Consoles: £350
PS4 with either Killzone or Knack: £380
PS Plus: £30