Fast Ridata or Slow Kingston

Hi, I'm planing to buy a 2 GB SD card for my A620. I'm interested in taking videos in full resolution, so I need a relatively fast card.

I found 2 brand in the same price level. Kingston with its Elite Pro SD Card 50x and RIDATA with its 150x SD card.

I think the 7 mb/s write speed of the kingston sd card is enough for recording video, but speed is always welcome.
Which one do you recomend?

thanks.
Christian