i used a dremel on mine, took about 3 minutes to get it where i wanted...
just dont use too high a speed and watch the exposed edges, they get sharp, you almost have to take the plastic down to the rubber part, and a little around the curve for certain adapters.
i had bought the 6' cables from monoprice, the connectors are pretty big, but they work just fine now.
Once apple refunded my money for buying a bumper i figred why not..
If i didnt like the outcome of it i would get something else..
id post an image/pic but im 2 posts shy
edit: made some posts ha...