The charging option the OP noted (a PSP data/charge cable)is the best option. It will work with any usb port or wall wort and charges thru the power socket. The Sony power adapter is overpriced and kludgy. (I think they still charge $30 for it! You can get smaller PSP chargers for around $10, maybe less.) And general USB chargers are iffy (some will *drain* the 505!). The OP has it right.
