I'm using a Nintendo DS carry case (http://www.amazon.co.uk/exec/obidos/...021865-8490225)
to carry around my 770, a freedom bluetooth keyboard, the stand, one of those emergency chargers, and a CA-44 all in one handy case.

The 770 fits perfectly in the DS place, the elastic is plently strong enough to hold it strongly. Every thing else fits in the top lip. Shame it's got "Nintendo DS" embroidered onto the top!