Yes, it's a bit ridiculous how Sky News is available on non-freesat but not on Freesat. I have the Humax HD box, I actually bought it when we moved back here to watch the ITV Champions League/FA Cup footie matches in HD as we had Virgin cable (but they had no HD at that time).
You are right that you think you can't live without Sky/VM until you try it - we had the largest Virgin package with all the channels but when you lose it, you realise 99% of what you watch is free to air anyway! I had signed up for Sky on a much reduced range of channels, only £32/month including HD!!!
That's £32/month more than I'm paying now and I'm more than happy