I've been with RackSpace UK for around 10 years now, and as much as I love them there are some issues.

I've now decided to move the server into two different areas, 1 for space (long term projects), for that I am going with Bytemark's Big-V Cloud, based in the UK.

For the server that hosts most of the websites, and small projects, I will be using DigitalOcean, even though its designed for development boxes, it is perfect, and I highly recommend them.