Where to Import US PSP's?

Hi,

currently with the £ so strong, and US PSP price drop, a PSP is about £80! what i need to know is where can i import US PSP's, In BULK? 5-8 PSP's, with downgradeable FW, and brand new? what do PSP's come with these days? and is it downgradeable?

What i want to do (and some friends) is downgrade these PSP's, to run PS1 games (that we own...) and homebrew, and keep our current PSP's official (some don't have PSP's)

What im really asking is, where can i import US PSP's, at the current price, hopefully with a bulk discount, that i can downgrade?

Thanks

Matt

Also where do i get Official White FacePlates?