Check out some of the specials at Status Snowboards. I have a Uno Series board and I love it. I had never heard of the company, but at this price point, I decided to give it a go and I have been pleasantly surprised.
2012 Uno Series : STATUS Snowboard Company
I imagine the 151 would be a reasonable choice based on your spec's.
Throw on some K2 Formula bindings (Medium).
K2 Formula Snowboard Binding 2012 | Aspen Ski and Board
Highly suggest you try on some boots before ordering anything online. Improperly fitted boots will ruin the whole experience. Still a lot of decent deals to be had.