Hey onthefence. I've been following your two threads (boots/bindings) and thought I would chime in as someone who got into the sport 2 years ago and purchased all new gear.
Between the boots and the bindings, I would personally suggest spending more on the boots, as they dictate more overall comfort. If you look into buying last years bindings, you should be able to get solid value for your money.
Just a note because I get the sense that your budget might be an issue - have you considered a different board? Unless you have a deal on the SL, you are probably looking to spend more on the board than the boots and bindings combined.
NS makes great boards, but as a beginner there might be a lot of other choices that allow you to progress just as fast, while being a bit easier on the wallet. This might open up the option for you to pick up a better quality boots/bindings, resulting in a better overall setup.