Buy.com this week has lowered the cost of the Kingston 8GB Secure Digital High Capacity Card (model no. SD4/8GB) by 56%, which results in its $34 list price becoming the new $14.95 sale price, and turns this into the best cost we have managed to find. Ideal for cameras and GPS systems, this memory card offers transfer rates up to 4MBps and comes backed by a lifetime warranty through the manufacturer. FREE shipping is included, and sales tax applies for residents of New York and California.

Double your memory with the Lexar 16GB Class 2 SDHC Flash Memory Card, on sale today at Amazon.com and has dropped from $57.94 down to a low $22.94 with shipping rates starting at $6.95. Those of you with Nintendo DS systems may be interested in the SanDisk 4GB Secure Digital Nintendo DSi SDHC Memory Card, on sale today for $14.95 and located at Adoramam.com. Also available from Adorama.com is the larger Kingston Technology 32GB SDHC Card, currently priced at $74.95 and includes FREE delivery.