Newbie to sw

[Kimmi7]

So I have this empty 77 gallon that I want to make in to a reef tank. I have been reading up and am aware of what it's going to cost to start up. So like all newbies I will be picking your brains for any and all information. Now I am a newbie to sw but not fish keeping. As is I have 4 running tanks. Two have freshwater shrimp, one has freshwater crayfish and a lonely crab. My fav has 13 angels all different kinds and sits in livingroom. So here's my ideas for the tank.

I want a brightly coloured reef tank with just as brightly coloured fish and such.

I know to have corals of each kind you need great lighting. So question number one: t5 ho's do they work for sw?
Question two: I am doing a sump as it seems the best way to go. Now Where do I drill the holes on the tank? Best places to do


Feel free to add any information or links that you have tht could help a newbie out!!!!!