wow the locker idea is kind of cool
sounds like u know what ur doin pretty much
i use all DIY equip so i cant help u with finding things, but one thing i want to mention (u prolly know but whatever) is ur going to have NO light penetration in that thing, so side lighting is almost a must. Its atleast something to keep in mind. And with the locker, ONE plant is ur max, but it can be a pretty rockin plant. Also, unless ur doing all ur wiring urself, electrical shock shouldnt be a huge issue, specially with CFLs, gettin zapped by ur wall socket for a second isnt really a big deal, itll just catch you off guard. When i was five i used to go to work with my dad and play around there (poor family, couldnt afford daycare and i didnt go to kindergarden). One day i triped and stuck my hand right into a unsheilded electral socket, shocked the shit out of me (physicly and mentaly) but even at 5 I just pulled my finger out and didnt even tell my dad out of fear that i might get in trouble (i was 5...) anyways, thats my story, i woudlnt worry too much about being electricuted. ON THE SAME NOTE tho, if ur using CFLS you can prolly use a wood grow box (i do), i dont think its a huge firerisk as long as u arnt dumb about it.