Web Hosting: Koreru.com

My hosting went out of business today. I liked them very much, their support was the coolest, they hepled me on time every time I needed it, even when the mistake was on my end :) The rule: "the customer is always right" really mattered for them, I'm very sad they are gone.. At least it happened at the end of my payed year :)

They say my sites will be up until 3 of April so I have some time to transfer, but I don't know where to begin?! :(

I've never transfered my sites to other hosting, so can you guys tell my how should I do that in the less painful way? I have about 15-20 sites, nothing big really, but still I would like to have them up and running on a new hosting in less downtime possible.

Also please someone suggest me a decent hosting. I was paying about 30 bucks/year (with a promotional code that is :) ) for:
100GB Transfer monthly
10Gb Diskspace
with cpanel, and unlimited mysql databases,domains,emails,addon domains... everything else.