The Silver Jews are always a good pick. If you haven’t checked out the new Stephen Malkmus album it’s about time to do it now. Since you like Hellacopters I recommend The Flaming Sideburns. They did a great split with Hellacopters -White Trash Soul, you should definetely try to get that!
The Rentals, Pavement, Archers of Loaf and The Hives are also bands that can give you lots of great moments.