Is it a good idea to sell my 15inch non unibody for a 13inch unibody

Looking at selling my 15inch MBP that is the silver older non unibody version in order to get a new 13inch MBP unibody. Would I be losing anything if I did so? Is my MBP more "pro" than the 13inch that is new?

I currently use mine for video editing with FCP. So I need to make sure the 13 inch is capable...

Depending on the model, the 15 inch probably has a dedicated graphics card for heavy duty video work, whereas the 13 inch doesn't. I personally prefer the previous generation of MBP. The ports are on both sides instead of crowding up the left hand side. The keyboard is all silver, giving the whole thing a more uniform look, and the keys are way more responsive than any chiclet keyboard. Also, the bigger screen is probably better for editing. The newer 13 inch has a glossy screen, which looks good but does not represent colors as accurately as a matte screen, which can be important with video and photo work.

thanks for the input... i appreciate that