i just recently started my first saltwater also although im doing it in a 20g.i heard bigger is way easier to take care of since theres more water so it takes longer for the nitrate levels to go up or something like that (im still learning) so i decided to start with a smaller tank si u could get used to a higher upkeep.based off what little knowledge i have (also depends wich corals you plan to grow) if your gonna do anenomes or stuff like that id suggest getting some for of metal hailide.im currently in the works of buying a viper metal halide that hooks to the back of your tank since i dont have a top.but other than this like previsly stated ask questions i have been asking tons and everything exept for 1 question was answered..and that one was about my freshwater tank.
R.I.P dimebag darrel
-Nigel