I'm looking at setting up a EC2 instance and had a couple questions I couldn't find.

1. Is it possible to run more than group more than one instance together to run the same WordPress install from different locations?

2. I looked around and found the BitNami WordPress EBS Image and had planned on using this. Any other suggestions?

3. I'm looking at how hard it would be to run a wordpress multisite install. Anyone have any suggestions / words of wisdom on this?

I'm also contemplating having someone help me set this up. This may be a little kindergarten for this forum but I've only hosted on 3rd part managed hosts and AWS is looking a little complicated for me right now.