Knock, knock. Who is it? Opportunity

An opportunity knocked on my door recently and I am still trying to determine if it is worth the risk.  While at my retail store job, I spoke with a customer who works for a local tech support company.  Based on what I said, he felt I would be a good candidate.  He provided me with his manager's email and phone number.  I gave my resume a much needed update since I had not been on a serious job hunt in 3 years.  I was then scheduled for a phone interview.  The interviewer liked our conversation and sent my information to the local manager.  I scheduled a face to face interview.  I spoke with the manager as well as 2 of the techs.  I think they were impressed with my skill set.  The manager asked me to come back and meet some of the other techs.  We're talking about 35k a year with benefits, vacation and 401k.  I've been crunching numbers to see if I can live off one job based on my recent divorce.  Opportunity is knocking.  I'm just hoping I don't let in a financial disaster.