We were quite happy when this bad boy was £13.99 a few months ago. You can now grab the SanDisk class 4 16GB Micro SD card for £8.99 from Play.com. RRP? £49.99.
The SanDisk class 4 16GB Micro SD card can laugh off a drop of up to 10 feet, and comes with a 5-year warranty.
(Thanks to Syzable at HUKD)