I have to agree with zakk, I think boots should be your best investment as a beginner... Sure you want a good board but your gonna grow out of a beginner board really fast. So there is no point in spending that kind of money right now. Bindings are a give and take for me... I didn't need to up grade my bindings till this year and I have been riding for 3 years now, but didn't really start getting into the sport till last year. I didn't need a "good" set of bindings because I wasn't riding hard or doing any back country till now.
I LOVE my flows and think they are a GREAT beginner binding but your could find cheaper. Also if you have a big foot I would go with a normal cinch binding. Flows can destroy your boots if they are to big for the binding.
Anywho, hope I helped a little.
Agree with the above too.
its so vital that you get the boots right.
Try on like thirty pairs if you can
seriously set a day aside and hit up different shops and don't listen to someone who recommends a boot before they look at your foot shape.
as for bones, yeah, im not a fan of flow bindings or certain brands.
After you've tinkered around at your local shops.
i recommend sierrasnowboard.com
they have amazing shit from last year at a good price.
i just got an 08 Jeremy jones with 08 un inc est's for 414 bucks.
and stick with the sport!