Currently Buy.com has the Eye-Fi 4GB SDHC wireless flash memory card and USB card reader (model no. EYE-Fi-4SV) for $34.99.  That's a whopping 45% off the list price of $79.99, and the lowest total price we have seen on this memory card by $38.  FREE shipping is included and sales tax applies for residents of New York and California.  The Eye-Fi SDHC memory card records pictures the same way a standard SDHC card would, but it also has the ability to deliver photos to your computer wirelessly through your home Wi-Fi network, or upload directly to sites like Facebook, YouTube, Flickr and more. 

The older 2GB Eye Fi Home wireless SD card is now available at Flash-memory-store.com for the sale price of $54.95, down from $75.95.  TigerDirect.com has the 2GB Lexar Shoot-n-Sync Wi-Fi memory card for $74.99 with about $5 for shipping.  The Eye-Fi Explore 2GB wireless SD memory card with unlimited Geotagging has seen a 46% price drop from $129.99 to $69.95 at AbesOfMaine.com.