Mainly a networking/storage question, also some travel stuff

Couple of things:
On my windows laptop, one of two in the house,I 5.4 Gb left. Besides cleaning up and deleting garbage photos and other data, which I will do, the next step seem like an external hard drive. I am looking for something where I can access the photos on my network, from any computer. What would I need to do this?

Also, I'm leaving for Israel on Tuesday.
Bringing a body, two lenses and a flash. These should all be in my carry on correct?

Thanks

I picked up a Dlink DNS-323 along with 2 x 1.5TB drives and setup the box in raid 1 configuration. Works pretty good for me!

Yes, you should have your camera gear in carry on.

If you mean you want to be able to access your computer from any where in the world, you can setup one of your computers as an FTP server. The only issue is if you have a static IP or dynamic IP. Dynamic IP means that it will change, usually whenever the computer is restarted or when your modem reconnects to your provider's DHCP server. If you have cable modem, then you're IP will probably never change. When you setup your computer as an FTP server, you will need to know it's IP address to connect to it and since the IP address constantly changes, you will have to know the address each time you do. Fortunately, there are services that will keep that info as well. Unfortunately, I forgot the names of them, but will post them later when I do.

EDIT: I just remembered, just do a search on Dynamic DNS.