Just got an e-mail from dvd.co.uk.
This stood out from the other offers for me.
SanDisk - Flash memory card ( Memory Stick PRO Duo adapter included ) - 8 GB - Memory Stick Micro (M2)
£29.99 + P&P
SanDisk Memory Stick Micro or M2 is the ideal memory card solution for Sony Ericssons new generation of slim line, multimedia mobile phones needing expandable storage for music, videos, and quality photos. The advantage of the M2 is compatibility with all M2 slotted mobile phones as well as all Memory Stick PRO Duo slotted devices when accompanied with the included M2 adapter.
* Includes Memory Stick PRO Duo adapter for universal compatibility with M2 slots and Memory Stick PRO Duo slots
* Dual voltage operation; 1.8v for new Sony Ericsson mobile phones, 3.3v for Memory Stick PRO Duo compatible devices
* Controlled ejection design allows for easier removal
* Sony MagicGate encryption technology support