It's not the 90s any more; you really shouldn't need physical access and floppies to flash the bios. A convenient solution is to use a network bootable floppy emulator.
For convenience, I've posted the necessary files.
LABEL bios kernel memdisk append initrd=bios-floppy
Loop mount the floppy image and copy over the flasher and files. PXE boot (with dhcp param filename=pxelinux.0), type "bios" as the kernel, and flash as usual. For automatic flashing of many machines, use autoexec.bat.
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