Click here to register for this year's Microsoft Architect Insight event which is taking place in a couple of weeks time (5th & 6th March) at the Celtic Manor Resort in Wales. Unlike most Microsoft events there is a charge to attend of £795 though this includes your accomodation in the Manor and all meals too - it's a very high quality establishment.
The registration site includes full details of the agenda and speakers.
If you'd like to read more about the event it's worth taking a look at the Architect Insight blog.
I won't be there myself as the TechNet roadshow are on the road in Glasgow on the 6th. I thoroughly enjoyed last year's Architect Insight event and have every reason the expect this one to be event better.