n00b questions about whitelisting and BIOS unlocks

[HumblePie]

Hey all,

I recently re-purposed my daughter's Lenovo S10-3 netbook (Phoenix BIOS) and was hoping to add some aftermarket card to the PCIe slot. Sadly, I am a complete n00b with regard to BIOS mods so am not sure if what I am looking to do will even work or not and am hoping you folks can shed some light on the situation.

First, I am looking to swap out the standard crappy Atheros AR9285 card for an Intel 7260. I heard a rumor that the mini PCIe was unlocked and that should work...We'll see. Second is the bigger problem. I want to drop in some PCIe card as well...am thinking of maybe an HD decoder to help offload some of the CPU work. My questions are:

1) Can I unlock my PCIe slot to accommodate any aftermarket card or will it be restricted to, say, WWAN cards (or other)?
2) Does anyone know whether or not the Lenovo S10-3 actually locks the mini PCIe slot or if there are other considerations with just dropping in the Intel 7260?
3) When unlocking the BIOS do the hidden menus also light up or would I specifically request that functionality?

For reference I am using this BIOS.

Any info is appreciated.