Today only, MidnightBox.com offers the Rocketfish Universal Notebook Power Adapter
, model no. RF-BPRAC3, for $19.95
for shipping. That's the lowest total price we could find by $18, although we saw it for $5 less in Febraury (since expired). This 15-volt to 24-volt adapter plugs into AC wall outlets and features 10 changeable tips.
Note: A 30-day warranty applies, although it's unclear who supports it.