Could be genuine but not sure I would trust it at that price Charlotte. They are being sold at £39.95 from reliable companies so I am not saying this couldn't be legitimae but it seems a bit strange to sell this card at £24.99. Having said that, several of us got entirely legitimate Extreme IIIs for £17.99 so it could be absolutely fine.
I guess I am just urging caution but if someone gets one at this price then good on you. I am not going to for one simple reason: I have 4 of the 4Gb Extreme IIIs already and as manic as I am with that shutter release, even I would struggle to fill all 4 cards in a weekend
Amazing to think these cards were £200 just a year or less ago. I remember paying £120 for a compact flash card. It was a bargain.... with 10Mbs of space! (No, that isn't a typo, it really was 10Mbs, not GBs!)
How the world is changing
Cheers,
Rob