I use a cheap under cabinet light for lighting mostly just so I can see the fish better and guage their health (There is ALWAYS come copper in the water so algae never grows your LFS also does this in their fish only section most likely). I keep my QT cycled at all times but when I fist started I stuck a couple Aquaclear filter pads in my DT for a week to get them seeded. Now I have one pad in the AC filter and I stuffed a couple into some PVC elbows to make "artificial live rock" that won't absorb copper/paraguard/prazi, etc (all of which I use on EVERY FISH that comes through). I have an air pump plumbed into the AC filter housing so there are no bubbles in the tank at all to get in the way of viewing the fish.
You will also want a Seachem Ammonia Badge to monitor ammonia at all times. I also keep a Koralia Nano in there for some flow to try and keep food/detritus suspended until the HOB can pick it up.
"Artificial Live Rock"
My QT: