i-Canoe's half price offers at the moment here (http://www.i-canoe.com/HALF+PRICE+CLEARANCE!!!.htm) have a very good helmet for only €55 - the Shred Ready Vixen (http://www.i-canoe.com/HALF+PRICE+CLEARANCE!!!/Shred+Ready+Vixen.html?osCsid=9bad25360fb98f8fb92c642e3db8a797).
It's the same as Karen's and similar to Niall's old helmet. Very good helmet.
There's other interesting thermally yokes for half price too.