Hello serverfault

I work for a European media company and we are currently looking for colocation in the US. I know the European market quite well unfortunately that is not the case for the US. I'm hoping for you guys to help me out a bit with a few questions, it would be much appreciated!

I am looking for a data center that can deliver a high level of availability (tier 3 or better). The installation will be fairly large so capacity is important. Good internet connectivity/carrier presence. However most important is good customer support, skilled dedicated and responsive technical staff, since we won't have tech staff close by. I'm looking for a small and fast moving company that target internet businesses rather than big old enterprise hosting.

• What locations should we go for given that we want to reach all of the US from a single site and still maintain decent latency? (do we need east and west coast?)
• Where are the main internet hubs and should you try and get as close as possible?
• Are there any good online resources I should look at?
• Where do the large scale internet/media services colocate?

• Lastly I would be very happy to get some actual recommendations for companies to talk to

  P.S I'm happy to return the favor if anyone has question regarding data centers and colocation in Europe.