Good prices on Memory Stick Pro Duos at MyMemory at the moment. Best I could find elsewhere for a 16GB MSPD is about £40. The MyMemory photo shows the normal speed, but the one I received is actually a high speed Mark 2 card - good for HD camcorders and digicams. On top there's 5% cashback at the usual sites.
Other Lexar Memory Stick prices from MyMemory:
I paid extra for Special Delivery and received it before 1pm next day (they ship from Jersey, but they pay the VAT upfront)
PS: Yes, we all know these are about double the prices of the same sizes in SD. But that's the tax you pay for buying Sony cameras :(