While we've run into situations before where we hate unplugging and replugging in a keyboard to troubleshoot computers, this proposed situation may just make enough sense to justify its price tag. The ShareCentral USB hub allows up to 5 devices to connect to two computers sans a network via a flick of a switch. The coolest feature must be the auto-printer switching that'll save you time from setting one up over the network.
The ShareCentral 5-port USB hub is available for $80. The smaller varieties, 1-port and 2-port, will go for $40 and $60 respectively. Though, we personally find the 1-port one pretty useless and only for the laziest, filthily rich people on Earth. The hub will be available by the end of the month at major retailers.
More information can be found here.