This one is a very good choice:
http://www.tigerdirect.com/applicati...&CMP=ILC-FOT04
... and it is available in US from TigerDirect.com
I am using this card with the same camera and it's working fine.
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Just a notice regarding 4GB or 8GB card => Even if they will work (lets assume it), then you will be not able to shoot non-stop movie for 4GB or 8GB as an internal battery will last just several minutes. It is the weakest part of this camera.
Think about upgrading this camera with EXTERNAL more powerfull Li-Po battery (for example from your old cell phone (if you still have charger for it)).
Andrew.