Best memory card to use with Canon Powershot S90

I like the Sandisk Ultra II plus because it neatly folds to revel a USB port. Any SD card should do though I've used Sandisk & Lexar for years, beat them up, and generally abused them and I've never had a failure. Class speed shouldn't be much of an issue unless you plan to shoot a lot of video, in which case I'd go with the faster speed (class 6) SDHC cards but make sure you have a compatible card reader.

I have a SanDisk Extreme SDHC. It’s a 30 MB/s card. Probably not necessary for P&S but I got it to swap between the P&S and SLR.

Extreme SDHC

Thanks James. Have had Sandisk Ultra memory with my simple p&s but without a usb connector, and Class 6 cards with my Xacti video cam. Are there Class 6 cards with usb connectors?

Also what's your best cheapest source? Newegg, Tiger, etc.?

Chris, wow, class 10 already, I am behind the times…definitely what I'd get for an SLR.

Would be great to find a class 6 card with usb connector, although not that big a deal considering you can upload directly from the camera with a mini cable.

I've checked the manual front to back and there's no size limitation listed for the memory card, but my guess is it could be 8MB, as the manual only shows photo and video shooting stats for 2MB and 8MB cards. Anyone know what the memory limitation of the camera is?

I'm afraid I don't have a current source for the Ultra 2 Plus. It looks like Amazon has the 4GB versions for $30. I do like not having to carry a card reader and/or USB cord with me all the time but not sure whether its worth the trade off in price as the prices of SDHC cards are dropping fast. Newegg & Adorama Camera are usually good sources of media though.
I have a Toshiba class 4 16GB SDHC card in my S90 right now without a problem so far (maybe 200 images). Not sure where I got this one (Sam's maybe?)