I have found a domain name I love, but it's already registered. Does this mean I can never have this domain?

It may. It depends on if the owner is willing to sell it. There are several ways to approach an owner. You can simply email him. You can send him a certified offer through NetSol. You may encounter a domain name owner that is not willing to sell. If this happens it's best to send him an email stating that you are interested in the name. Ask him to keep your email for record and if he ever considers selling it he can email you the asking price. Most domain name owners are going to quote you a high price when you inquire about a domain name. Remember that they have control over that name, but most domain name owners are willing to negotiate. If the domain name owner doesn't want to sell or if the price is out of your range I would suggest that you move on to another domain name that is similar to the one that you fell in love with.