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My neighbour's a developer and he swears by amazon - he showed it to me the other day and it looked hella complicated. He kept using words I'd never heard of....

You can have different hosting accounts at the same host, but be aware that they might end up being on the same server etc.. anyway.

Cheapest I have is £2 a month (around $3) for basic shared hosting, most expensive is £10 for cloud hosting.