Congrats on your future board purchase!
As for size, Id say go with a 134. Its a good size for you and it will be easy for others to learn on it as well (unless they weigh more than 180 lbs!)
what board were you riding before (model, size and year)? did you like it? what did you like and what didnt you like?
Based on that I may be able to give you some shape suggestions.