Oh, something else I forgot to mention is to check whether your WiFi is supported under Linux before you make thew switch and to mnake arangements to use ethernet or some other way to grab the necessary drivers if it isn't (assuming you'll use WiFi). It might seem obvious but it's worth planning these things before making the switch.
Edit: in case I'm coming across negative I should point out that I am trying to anticipate any problens which may occur before they happen in order to be prepared. I think it better to prepare for the worst even when hoping for the best.

273 - not negative at all, I appreciate the info

At the present time there are a few distro's that work well in UEFI mode, so, depending on which 1 you pick you may not have to boot in legacy bios. Debian Testing , Ubuntu, Fedora & some others boot to UEFI & a few have the windows Secure Boot Key, I believe Ubuntu & fedora have paid for it.