What Gauge and Length Screws to Use to Fix Heavy Bathroom Cabinet to Wall? General problems, solutions, information and advice on fixing to walls of all kinds

[Freckles 1602]

I've just bought a pretty heavy bathroom cabinet to fix to my brick bathroom wall.
It fixes in two places near the top and I have no idea what gauge or length screws to use to stop it falling off the wall!
This is the cabinet (if it helps) http://www.ikea.com/gb/en/catalog/products/70217671/

Any advice would be very much appreciated,
many thanks

[welsh brickie]

you could use stardrive fixings 75mm long, no rawplug required