Nothing like leaving things till the last minute...

I'm headed to Sydney on May 12th. Will be there 12 days.

I need some advice on how to handle my power requirements.

What I'd like to do is to bring a regular us multi-outlet strip so I can

My Laptop
Wireless Router
VOIP device
Cordless phone base station
External HD

Is there a device I can plug into an outlet there which will convert things
to 110v/60hz and I could then plug the cord from my multi-outlet strip into
the converter?

I guess it needs to handle about a 15 amp draw.

Do most of the hotels have high speed internet service?
How much do they charge for it?

Any other tips?