Buy.com has SanDisk 4GB Memory Stick Micro (M2) for $33 with Free Shipping. New users to Google Checkout can save another $10 and get it for $23.

Frys has 8GB A-Data Secure Digital High Capacity (SDHC) memory card with USB card reader for $36 - $12 rebate = $24. Shipping starts at $5 and depends on your zip code. Thanks brisar

Pcmicrostore has this TRANSCEND 2GB MICRO SD
use coupon code $5off$10   $12.81- $5.00=7.81 with Free Shipping.

Newnegg.com has this Transcend 8GB Compact Flash CF Flash Card for 35.25+5.66 for shipping. Total =42.91 It bad for 8GB memory card.

Kingston 2GB MicroSD Flash Card Model SDC2GB

Frys.com has this
2GB DDR2 PC2-6400 DUAL CHANNEL GOLD GX XTC C4 OCZ
for $19.99 after $30.00 Rebate

Buy.com has this nice laptop memory for $21.95 with Free Shipping.  Save more with google checkout (new customer)

They also have the same deal for Desktop

A-DATA 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) $50 after $20MIR