The worst one I remember was Dirty Rotten Scoundrels with Steve Martin. Love Steve but that was the first and only movie in my life I had to walk out of. It was 110 degrees out but even air conditioning couldn't make me sit through any more of it.
Pyn Siren - Slave To Your Master
Headrush - S/T
Dream Theater - Octavarium (Will buy this when it is released, but for now I downloaded it and it kicks ass)