I've just been off reading up about the pocket pod express - yep, Dave is dead right.
I would also consider the Pocket POD itself - a bit more expensive, but it has USB and downloadable editor software. I can't find out how much it will let you edit, but if it allows you near tone control parameters for the amp models (there are none on either unit), then that's the one to get, you'd be able to sort out any tinny-ness in the presets.