New boarder need help with board selection from the Vets.

Hey guys, well I went boarding for the first time in Big Bear CA with a buddy of mine who has been boarding for a long time now. I can say I'm hooked since I always enjoy extreme sports. I been studying and looking at reviews and I know what I want pretty much and what I'm willing to do to learn more on it, my friend says I'm a natural on it and I do feel really comfortable on a board, I'm already tested my limits and want to go even further(I know probably a rookie mistake, but I always been in extreme sports). So here it is what I would like to get.

I enjoy riding switch, I like goofy or regular so I found out twin tip will be a good bet for me. I'm a small guy 5'7 130lbs 25 yrs old so I would like to have a small board 146-149 and a lightweight board. I love the fact that I was carving, switching and pulling out powder, but i also started to hit the ramps a bit and want to do more of it. I prefer manuverbility and ease turning. After all my reviews I read I came up with 3 boards.

-Burton Deuce
-K2 Believer
-Capita Stairmaster

What do you think will be the best bet through experinece? I like to go intermediate just because I know how I am and I won't put a board down unless I'm challenging myself and learning new things. If you have any other suggestions please let me know. I'm seriously willing to go out right now and pick a board and go back to the mountains since I have 3 weeks off from work.

And I realize Snowboarders are really good people, everyone was open and nice!! Thanks in advance for the feedback everybody.

[avenged1985]

id say get the stairmaster. great board from what ive heard/

ya stairmaster has good reviews but look into the GNU Riders Choice BTX, its a great all mountain board and performs well in the park.

thanks for the help guys, I'm reviewing any suggestions.