Good Image Hosting Site?

[Chris Ironhawk]

I am going on a 10-day long trip next month, and I am in charge of uploading pictures to a remote server for friends and family back home to see...

I am looking for a good image hosting site that will allow me to upload pictures in bulk, like 200 at a time... I will probably reach around 4000 pictures by the end of the trip.

I need a FREE image hosting site. That is why I am asking, because I know that I will not find what I am looking for by looking at the big sites (because they know that they can charge $$$$$$$).

I would also prefer it if I could password guard the albums.

Any suggestions are VERY helpful...

Thanks,
Chris Ironhawk