There should be a sticky on here with tons of getting started info.
Lights are the most expensive part for a reef tank, I will suggest 2 of the leds made by taotronics on ebay, one for each side.
Salinity is best at 1.020 to 1.025, closer to 1.024-1.025 for a reef.
You should limit yourself to mostly "nano" fish with only one 10" depth. I use liveaquaria website as a good research tool.
You should mix your saltwater in a separate container like a brute trash can. Don't use tap water, use ro
or better ro
water to prevent problems down the road.
Get your sand and rock in, let the tank cycle before adding any fish inverts or coral. Some liverock would be helpfull but dry rock is cheaper. Try bulk reef supply for nice dry rock and reefrocks is good for base rock (not as good looking imo
) but they have cheap sand too. I have bought from both thise suppliers and I am very happy.