There are two really good songs that play during the Lee vs. Gaara fight. The first one plays as soon as Lee goes on the offensive right after taking off his weights. The second one plays right at the beginning of the episode where he's opening the gates, and continues through that offensive.

The other new song I really like that I'd like to see is the one that plays when Hokage is fighting Orochimaru in the darkness and its showing the various generations of ninja from Konoha.