It is a little random with the answers you get here. You REALLY have to provide more info. Btw,. you might get more info at the: http://standupzone.com/forum/
Weight, skill type of paddling etc.
Someone I am between 180-190 and ride boards between 9'6'' and 7'8'' for waves.
So, there are so many boards for different uses that is doesn't make sense to just ask a random question.
Some of the cheaper boards have a HUGE disadvantage with the rails being super soft..especially toward the tail. Makes the board kind of shitty for surfing IMO.
In anycase, I'd consider checking out the used board section...or saving a little longer.