BUMP
I was just at Costco yesterday and they have Sandisk 256MB SD cards for $64.99 OTD (out the door). A big HOWEVER because these cards (Sandisk brand) are known to be problematic with Toshiba Pocket PCs, and Toshiba has even confirmed this...so I figure it is worth it for the extra initial cost for the Lexar brand.
If you wanna find out more, search Google.
I personally have my e335 nearly filled with just docs from work, etc. Doh!