Hi Chris, welcome to TP. I'm so glad you have found this forum, it will provide you with a huge amount of advice and support.
I'm so sorry you've been diagnosed at such a young age. It's tragic at any age, of course, but young-onset cases are especially hard. You and your wife had so much to look forward to together.
But there will still be good times, and the best advice I can give you is to do as much together as you can. Plan those adventures for now, rather than next year, that way you will be building up treasured memories.
I'm not sure how much information you want at the moment. There will be wills and power of attorney to sort out, but for the moment you need time to assimilate.
Perhaps you could contact your local branch of Alzheimer's Society, there will be support group meetings that you could join.
If you want information, click the factsheet icon at the top left of the page, there is information about anything you need to know. This one may interest you.
http://www.alzheimers.org.uk/Facts_about_dementia/What_is_dementia/info_fronto.htm
And post on here whenever you want. Ask any questions, and if you just need support you will find it here.
All the best,