Bios Mods -The Best BIOS Update and Modification Source

Hello everyone !  

So I have a few laptops that I can "afford to permanently brick" before I have acquired enough knowledge & confidence to go about flashing my Asus K53E.

I was wondering what software would I need to edit & flash a BIOS ROM or BIN file for a Dell Vostro A860 ? Here's the A02 version for this.

Then for like an HP nx6325 (F.07 can be acquired here) ?

Or from a Fujitsu LifeBook P770 ?

I noticed that the AMIBCP is only suitable for modding Asus machines as opening BIOS files from the abovementioned examples doesn't work.

Thanks !