99 cent domains for just about any extension. If the discount doesn't show up at your checkout automatically than make sure to use the coupon code godaddy99.
The deal works for any available .COM, .US, .MOBI, .BIZ, .NET, .ORG, .CA, .CO.UK or .IN domain and either expires after the first 10,000 redemptions or on 09/13.
If you're on the fence about godaddy hosting I can vouch for them that it's a decent service. Domains are generally reliable and consistent and they are relatively easy to set up. It's not a top-notch hosting service but it gets the job done for a really cheap price.