panasonic lx3 prices

Best type of SD memory card for 10.1mp/720p Panasonic LX3?
About to purchase a couple of SD cards.
Is there a difference btween ones that are Class 6 rated and others that are named things like “Extreme” or “HD Video”?
I am not worried about price, I simply want the best types of performing cards to enable quick capture of images and video.
Would simply getting a Class 6 card suffice?
I would suggest sandisk ultra ii sdhc card with fast transfer rate.
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fs%3Fie%3DUTF8%26ref%255F%3Dnb%255Fss%255F0%255F24%26field-keywords%3Dsandisk%2520ultra%2520ii%2520sdhc%2520card%26url%3Dsearch-alias%253Delectronics%26sprefix%3DSanDisk%2520Ultra%2520II%2520sdhc%2520ca&tag=computer0bd-20&linkCode=ur2&camp=1789&creative=390957
or get SDHC card class 6 from Sandisk, kingston or Transcend brand
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fs%3Fie%3DUTF8%26ref%255F%3Dnb%255Fss%26field-keywords%3Dsdhc%2520card%26url%3Dsearch-alias%253Delectronics&tag=computer0bd-20&linkCode=ur2&camp=1789&creative=390957