Sirius XM hasn't even been one for long, and yet we're already staring an impending price increase in the face. According to Sirius Buzz, company support representatives are now confirming to the general public that a rate hike will go into effect starting March 11, 2009. They're encouraging current subscribers to lock in their current rates for three years in order to be grandfathered in, but should you choose not to, you'll likely be paying $2 more for additional subscriptions and a $2.99 fee for the online internet radio service. If there's any good news here, it's that the latter fee will give you access to that oh-so-amazing 128k "premium" feed, though