If you are trying to compete in the pop/rock/adult top 40 marketplace, here are a few CDs worth listening to that have hits and are selling (500,000 units equals Gold):
Daughtry (self-titled) 2,779,675 (30 weeks)
Maroon5 (It Won't Be Soon Before Long) 801,485 (4 weeks)
Gwen Stefani (Sweet Escape) 1,368,201 (28 weeks)
Nickelback (All the Right Reasons) 5,465,775 (89 weeks)
Carrie Underwood (Some Hearts) 5,660,163 (83 weeks)
Pink (I'm Not Dead) 822,057 (25 weeks)
Nelly Furtado (Loose) 1,835,473 (52 weeks)
Hinder (Extreme Behavior) 2,410,281 (71 weeks)
Fray (How to Save a Life) 2,104,621 (75 weeks)
Avril Lavigne (Best Damn Thing) 812,726 (9 weeks)
KT Tunstall (Eye to the Telescope) 1,070,434 (70 weeks)
Red Jumpsuit Apparatus (Don't You Fake It) 659,898 (48 weeks)
Fergie (Dutchess) 2,0388,823 (39 weeks)
Linkin Park (Minutes to Midnight) 1,125,177 (5 weeks)
Incubus (Light Grenades) 608,097 (29 weeks)
Amy Winehouse (Back to Black) 633,872 (14 weeks)
*Nielsen Soundscan Charts week ending 6/17/07 (weeks on chart)
