For electronics that use USB to charge you'll want one that's at least 4.

1. Company "phone"/PCD
2. Company iPad
3. Personal iPad
4. Anything else you want to charge.

I purchased a 4 input USB in Hong Kong for about $17 that came with all the international adapters. It has 2 2.1amp inputs for the iPads and 2 for other items. In my previous job I needed a laptop, but since I've been here (almost 3 yrs) I've just travelled with my iPad. I really didn't see a need for a laptop. Some folks like the laptop others don't. I used to carry the large LW bag but have since reduced my bag to the smaller one. I got tired of carrying crap I didn't need. My shoulder is better for it. Just pack lots of underwear and socks, a bathing suit, and 1 or 2 Landry detergents. You'll be fine.