LiquidWeb's managed hosting is great. I've had a dedi with them for more than 3 years and they'll pretty much do anything I ask of them in a reasonable time frame. They recently gave me a free RAM upgrade. Before this I was with Rackshack > EV1 > The Planet > Softlayer. Also been with SingleHop, 1Web, and Netnation over the years but none have been as good as LiquidWeb.