Seems like that means tattoos are a definite no, doesn't it? Actually, from what I understand, this is referring to a mark put on the body to signify devotion to a god (or, a mark an owner would put on his slave.)
In fact, that is what a tattoo shows. It shows what you are devoted to, or what you identify yourself with. So, I don't think tattoos are necessarily wrong, or necessarily right. It depends on what it depicts. What is it a symbol of? Just as displaying a flag shows patriotism or love for your country, so your tattoo identifies you with that symbol, whatever it may be.
It is important to remember, however, that in 1 Corinthians 8, Paul tells us that if what we are doing will cause our brother in Christ to stumble, then we shouldn't participate in it. If there are people around you who you might influence negatively, then it probably is best you don't get a tattoo. What might a tattoo say to people you come into contact with think? You are always going to offend someone, no matter what you do, so just because someone doesn't like it doesn't mean it is wrong. That is not your main concern. What you should consider is are you going to cause another Christian to stumble by doing this?
So in short, no, I do not think tattoos are wrong, though they aren't always right. Consider your motivation for the tattoo and how it will affect those around you. Always make sure the parlor you go to is clean, to avoid infection (another reason I think the Israelites were warned against tattoos... they did not know the causes of diseases, etc. or how to prevent them). But as long as your tattoo isn't inappropriate, you aren't violating the conscience of your friends and family, and you aren't addicted to getting them, I would say tattoos are not wrong.
Stated much better than I could have said it. =P