You've seen (or heard of) the film "The Fast and The Furious". Now.. meet the card that inspired it all - the SanDisk Extreme III 4 GB Class 6 SDHC!!
With record breaking speeds this card not only holds everything you need* but also throws it out infront of you when you ask for it. This card is one of the first of it's kind - it boasts a whopping 20 Megabyte per second transfer rate that maintains itself while reading data or writing through. SanDisk themselves proclaim a vigourous testing procedure in which this card has been verified to withstand high temperatures (and low), as well as shock and vibration.
Aside from this all, there is a massive 10 year warranty - possibly more than you would consider keeping it for.
So, the "SanDisk Extreme III 4 GB Class 6 SDHC" packs in high capacity storage, rapid data transfer rates and a gigantic warranty all for twenty sterling. 'The new heroic card'

* Dependant on your personal needs and size of storage required *