Hosting company recommendations

Can anyone recommend a good hosting company that has good experience in hosting ActiveCollab?

Thanks,
--Wei

I'm about to buy my licence and I will install on a cloud server at rackspacecloud.com

Their cloud servers performs very well with my current applications and according to phpinfo it should work on cloud site too. I'm very impressed by their setup and perfomance, I was using dedicated server hosting for years and I was a bit sceptical about the cloud - it's past history.

The great thing is that you don't have limit on resources because you pay for what you are using.