Do you have a Gameshark or Action Replay? You might try to boot using one of those with no cheats selected. It might do the trick and get the disk going. I'd suggest trying this before you start to tear the thing open. If it's brand new you might not want to void the warranty right away (though I seem to void the warranty of everything that I get within the first week, heh.)
I took apart two PS2's, 1 xbox and they been through hell. MY nephews always bothering me when I work on it. But unfortunately a certain taping came off the Drive Reader and I just gave up on it. Then I used that Ps2 for scrap parts and eventually gave the shell and whats ever left to my friend.No it's stock, well it's atleast 2 1/2 years old. It's been played to hell though! 3 madden's, gt4, but your talking to guy that killed a xbox in about the same time. I don't think that I would feel comfortable to tear into it! I think this would be a job for game crazy. Thanks for the help guys