you can get a 64gb expresscard SSD with an extra USB port that would give you a third USB port, plus 64gb of onboard solid state hard drive space (which doesnt fail in a couple years like magnetic drives)

What three USB peripherals do you have that must be in use at all times?

netbooks are not allowed to have any kind of disc drive. Microsoft set that rule so they could let people use windows XP. they dont want you to use XP, they want everyone on to vista and windows 7 when it comes. So they didnt allow disc drives.

However, this may change when windows 7 comes available, as it runs well on netbooks.