If lower level tickets are out of your price range, consider seats in sections 301-305 and 318-322 in the Mezzanine level. While you won't be close to the ice, these seats provide unobstructed views of the ice and lower ticket prices than 100 level sections.
For the best experience, choose seats within the first five rows. Each section has 18 rows labeled A-R with far superior views located in rows A-E. In fact, the views from those front rows are just slightly higher than the ultra-expensive club sections.
As you move into rows 10 and higher (K-R), it becomes more obvious that you're in the highest seating level and you begin to feel a bit removed from the action. These seats still have clear sightlines and are good at the right price, but you may want to consider lower rows in a corner section over higher rows along the sideline.