Voter registration in Wake County, NC going the Dems' way

Ben Smith asked for some reader feedback on what voter registration looked like locally and got this from a reader in Raleigh, NC who also included graphs.

Basically the Obama campaign added 15,000 Democrats and 7,000 Unaffiliated voters for the primary, then they pulled up stakes for 6-8 weeks and since they've started up again they've added another 6,000 Democrats and 6,000 Unaffiliated voters. Republicans in this time have only added 1,000 voters in Wake county since the beginning of the year (keep in mind Wake county is one of the fastest growing counties in the country). Republicans are down to 32% of registered voters where in the 2004 election they were 36% of registered voters in the county.

The reader, Adam Terando, concludes with "I have no doubt Obama will flip this county in 2008; the only question is by how much." I'd say.