What do I need....

To get to setup my first SW tank. I know absolutely nothing about SW tanks and possibly getting a 70 gallon here within the next week. What equipment do I need?? Are there SW tank starter kits to get te water switched over?? I have heard of sump filtration, but know nothing about it. Any other filtration that might work?? Please bear with me, for I am new to the world of SW tanks. BTW, once up and running, any fish that would be good to cycle with or is there another method?? Thanks! Please fill in the blanks and tell me more that I may have not asked or mentioned. Thank you!!

Never mind, I'll stick with FW!

After reading a few topics, it has come to my attention that it is much more expensive to house a SW tank than a FW tank and I do not have nearly enough funds to keep a 70 gallon SW tank alive. Sorry! Please disregard my previous message. Thanks,