1)Is your current
website hosting hosted on a cPanel server? If so tranferring over will be a jiffy as eUKhost run cPanel and they will be able to copy everything over from your current provider, without you having to do anything.
2)eUKhost are here to help you all the way. It will be your responsibility to change the nameserver of your domain, but thats all you need to do. eUKhost will be able to take care of everything else.
3)eUKhost have a reliable uptime record of 99.9%.
4)eUKhost provide plenty if notice regarding maintenance. You will be notified via email, and it will also be posted here on the forums so that you will know either way!
I hope thats helped you.
If you have anymore questions please don't hesitate to post them here - we're all here to help.