I am looking for a way to change the boot drive (between two hard drives) on a single PC without having to access the bios or using removable hard drives/bays. The idea is to have different bootable HD's and then choose which one boots when the PC is powered on. Not sure if this is possible yet... Can you force the bios to ask you which drive to boot from on each power up automatically? Are there any USB external HD's that could do the trick either by manual plugging/unplugging or via some USB switch? Thanks for any input on this.