need advice guys:)

[kgb]

hey guys ok i know this has been asked a million times but i have some question
ok my 2 room mate just got a 45 gallon long tank and have a metal stand for it . they are looking for a good setup
they are thinking like 3 bags of sand from johnathon. they want to have a well stocked coral tank with fish (hard and soft corals)
i am wondering what they should get for skimming and lighting and all that

i would like to here what you guys would do because i know you all have good tanks.
also they were thinking of a sea clone skimmer
also if you have any second hand stuff you loooking to sell then they would be super happy