What snowboard size would be Good? (5'5'' and 125 lbs)?

I've only gone snowboarding about 5 times but i really like it and i guess i caught on quick. I can easily make it down most slopes and can get down diamonds with little trouble. I can do smaller jumps and can ollie, but i think i'm going to keep trying that kind of thing and was wondering what board size to get. I know i need a freeride board and think i need something around 145-148 but im not too sure, I just wanted some more opinions.