SDHC Transfer Rate

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Looking for an SDHC card for my new 650D. Is the transfer rate of 20MB/s on the Transend 32GB suitable, or should I be looking at a faster one?
 
650D maximum video bitrate is 5.5MB/s.

650D max image file size is RAW + JPEG at 29.9 MB, so it would take about 1.5 secs to write to card.
 
Video will be fine, pictures will be ok as well but it'l take a long time to clear the buffer if you are machine gunning and take a dozen+ shots in a row.
Also slower cards are a royal pain in the *** when transfering everything to pc, do you really want to wait an hour or more to transfer a full card across?
 
Thanks for the info guys. Can you tell me how many minutes of video would fit on a 16BG card?
 
About 48 mins on full HD but filesize is limited to 4GB so max 12 min shots on a DSLR, but realistically you never shoot a clip that long.
 
There's also an EU definition of Camera vs. Camcorder. A camera has a maximum video clip length. Otherwise the import duty would be higher.
 
I went with these Sandisk one in the end for stills and video (one in each slot). Not had any issues with them since May, shooting pretty much every day.

http://www.amazon.co.uk/SanDisk-Sec...6?s=electronics&ie=UTF8&qid=1354128878&sr=1-6

OP - you want to give yourself the most amount of headroom in terms of rwrite speed... 'Class 10' is supposed be a minimum benchmark level for high-speed apllication like video and fast fps shooting... something like guaranteeing a minimum write speed of 10MB/s (if you follow the ratings C2 = 2MB/s, C4 = 4MB/s....) although many C10 cards will be faster than this.

Some info here - https://www.sdcard.org/developers/overview/speed_class/
 
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