Is that okey if i will bring my Ipad, Ipod, cell phone, MAC and camera on the plane?

My friends and i planning to go to BKK and i will bring Ipad, Ipod, cell phone and camera with me from DCA airport in the states to Thailand. And i guess, we might have to get off in UK and transfer to another airline. But how is the security? I mean, will i get arrest or get asked of what i brings alot ?