I’m currently a college student taking a 1 year arts & design program to help me figure out what I would like to strictly focus on studying, Ive made up my mind and have applied to several schools for Graphic Design for september 2010. All the colleges require a portfolio with 10-15 of my best work

WHAT DO YOU RECOMMEND I PUT IN IT OR START CREATING? I need to startsoon, the portfolio is due in 2 months. help please, any suggestions or examples would be greatly appreciated.
I used to focus strictly on canvas and ink painting, but I really have a passion and interest for graphic design now.

Besides having some kind of logo design /photoshop work Is it acceptable to include still life pencil drawings, 1,2,3 point perspective sketches and abstract art work?