You can get in touch with a translation agency. Check the Blueboard for one nearest to you. You can also promote your services on Proz.com through "featured translator" spots. You can show your translation ability by helping other translators struggling with difficult terms and phrases and improve your directory ranking in the process. You can post on your profile more specimens of your translation work. You can develope your web page provided by Proz.com for paying members. All you need is confidence in the quality of your work.