Car Charger for Dell Inspiron 5000e laptop

Hi,
Does anyone know where I canget a cheap car charger for a Dell Inspiron 5000e laptop? The power connector on the laptop is a strange shape (square with a notch taken out of it) and the standard car charger adaptors don't seem to fit it.

I'd suggest you try [broken link removed].

Thanks - I already tried eBay and I can't find a car charger specifically for the Inspiron 5000e. There are no shortage of car chargers for newer model laptops but I can't find what I want for the Inspiron 5000e (maybe its time to retire it and invest in a new laptop!).

These guys have em, no cheap though.

Dell Inspiron 5000 Car Charger
Dell Original Car Adaptor for Inspiron 5000 car charger £59 + vat