i recently purchased a Verbatim 256mb.. i was going to get the 512mb. cause that was what I planned to get.. it was $159 = $80 off . but when i got to staples they had 256mb for $80 = $40 off. the problem is that it was a mail in rebate and i didnt have $200 to give. so i bought a 256mb. and its awesome.. all u do is stick it in the USB if you have XP ( if not you'll need to install it ) it also comes with password protect. but i dont use it cause its really wierd.. and i dont like it. so i say go with Verbatim
I bought a 256 MB SanDisk brand when Best Buy had a rebate on them about a month ago. Works great. I'm curious to see how reliable it will be 5 years from now. My guess is that there isn't that much to these things... just a EEPROM style RAM chip that's encased in a pastic shell.