Hello Tony,
I like PowerDNN because they do know a lot about DNN (as opposed to a generic ASP.net host). I have a custom VPS server (I have some agreements with Tony re. advertising etc.) and generally I am happy. There are some glitches but DNN is a fickle beast sometimes and we do get them resolved.
Unfortunately I do not receive any referral bonus which I could pass on to you, so hence I cannot offer such a deal. If you do join them, please mention my recommendation though, as it does help me in the end eventually.