Here's a little 8GB micro hard drive from PNY that looks kinda like a miniature attaché case. The PNY Maxfile Attaché has a tiny hard disk spinning inside, and gives you USB 2.0 speed in a form factor that's 2" x 1.75" and just three quarters of an inch thick.
Its anodized aluminum housing keeps it feather-light, and it draws power from its USB 2.0 connector so it doesn't need an external adapter. Available now for $179, the company says higher capacities will be available later this year.
PNY 8GB Micro Hard Drive [LetsGoDigital]