Bush released their first in 1995 and the American critics wrote them off as grunge rip-offs. But if you overlook the label, you'll find a great rock sound with even greater lyrics. If you like "guitar Rock" Bush is for you. Glycerine and machinehead are their best songs.
Another band that I really like is 30 seconds to Mars. They're like a new version of rush, solid rock sound with plenty of synth and keyboards in the background. I guess you could call them a 'space rock' band. What's great about this band is their writing style. All we hear on the radio these days are love songs and songs about stuff everyone else has written about. The lead singer (actor Jared Leto [switchback, urban legends, panic room]) takes a different approach when writing.
Other bands that I like are nickelback, smile empty soul, stabbing westward, and incubus <[I think everyone here knows this one]. Nickelback (how you remind me, figured you out)) and Smile Empty Soul (silhouettes, bottom of a bottle) have a solid rock sound with lots of riffs. Incubus (pardon me, drive) adds a turntable to their mix bringing a funky sound to their rock. Stabbing Westward is a mix of gothic rock and techno with lyrics of heartache. If someone is breaking up with you, Stabbing Westward (save yourself, i remember) is the band to listen to.