[leigh_t]

You could try Engine Yard (https://www.engineyard.com/), I think they are using EC2 (has a datacenter in Ireland).

Can't vouch for how "good" their PHP offering is having never used it, definitely a passionate team though, I've met several of them over the years at PHP related conferences (in the UK) as the company has grown.

[aspleenic]

I can vouch for it - it's solid. Feel free to jump into #engineyard on IRCFreenode if you have any questions - or just use the trial hours to spin up a staging version and give it a try.