I made the plunge straight from pond to saltwater and have never regretted it

. I'm on my third tank and would have saved a lot of money if I'd started with a bigger tank first of all, so I think a 135gal tank is perfect
As others have said, there is no definate right way in this hobby - plenty of wrong ways

but when it comes to the right way, that can vary on opinion as much as anything else. My advice is, ask the questions do some research and make your own informed choice
I started off doing fish only with live rock (FOWLR), and then as I got more confident, I started adding cheaper smaller corals (mushrooms, Xenia, toadstool etc). Then I progressed to the more expensive ones such as SPS & LPS.
I can't help you on the costs as I'm in the UK, so prices are different, but I do know that once you start going to down the SPS, LPS and anemone route then it gets more expensive because of the lighting involved.
The best advice I can give, is look around other peoples tanks, decide what you want in your tank and ask questions, with regards to equipment you've found (or have been recommended), find a decent LFS (one that you can trust

) ask questions again and go for it
