Follow your skepticism through to the people who have actually analyzed all the "skeptics'" claims, only to find that they have no merit.
I used to be skeptical, too. I was reluctant to trust the "official" story. But I studied both the conspiracy theories and the analyses of them, and as more and more information came out, it became obvious that what really happened is more or less what the official story says.
WTC7 is viewed by conspiracy theorists as the best evidence for government deception, however the building was severely damaged by the falling towers (there are photos, look them up), and fires raged within until they compromised the building's structure, causing a collapse. There are first-hand accounts describing the damage and the intensity of the fires. I'm more inclined to believe people who were actually there, who made decisions about whether to continue putting firefighters' lives at risk (what got "pulled" was not the building, but the firefighting crews), than guys on the Internet who just want to think they're smarter than everyone else.