Saving the necessary funds is easier said than done! Looks like credit will very much be my friend this summer. As for the route, we've decided against Barcelona and anywhere west of the Italian Alps. A shame, but necessary to ensure we don't flout strict drink-drive laws. Boring but can't have the trip ruined! So Berlin a real possibility along with NW Poland before crossing back over towards Munich & Berchtesgaden to continue the rest of the route before heading up western Germany following Switzerland to head back to the UK on the 4th August.