Swapping it out, keep my media (music, pictures, videos, docs) on the hard drive that will be where my superdrive is at now. This will help when i'm editing video as well since I won't rely on any external connection. I'm going to try and see how long i last without a superdrive before i spend any money on an external enclosure for it.
i bought a caddy off of a popular auction site and it came with an external enclousure for my optical drive. USB powered.