Consider the SanDisk Cruzer, a SecureDigital card and USB reader in one. Buy.com has it right now w/256MB card for $98 after rebate. linky
Rather than lock yourself into a fixed size microdrive, it's a lot more practical to have a removable card -- that way you can upgrade the size as prices come down. Plus with most PDA's and digicams moving toward SD as a standard format, you can use it wherever you need it.:thumb: