Welcome to the site,
I was just in Ashburn (in NOVA) for a training class, and work from home myself... I'll second cstone's sentiments (I've done work in DC and MD as part of my job)
Watch the local laws, Denver (the county/city) is more restrictive than other parts of the state... even the 'burbs around Denver are MUCH varied (you may find Denver more restrictive than VA was)
Don't know if you put Denver just as a metro area- but be aware of what county/city you're choosing as your residence.