First Blessing
Borukh Ato Adoynoy Eloyheynu Melekh Ho-oylom Asher Kiddeshonu Be-mitsvoysov Ve-tsivonu Lehadlik Neyr Shel khanuko.Second Blessing
Blessed are You, Lord our God, King of the universe, who has sanctified us by His commandments, and has commanded us to kindle the lights of Hanukkah.
Borukh Ato Adoynoy Eloyheynu Melekh Ho-oylom She-oso Nissim La-avoseynu Ba-yyomim Ho-heym Ba-zzman Ha-zze.Third Blessing
Blessed are you, Lord our God, King of the universe, who wrought miracles for our fathers in days of old, at this season.
Borukh Ato Adoynoy Eloyheynu Melekh Ho-oylom She-hekheyonu Ve-kiymonu Ve-higgi'onu La-zzman Ha-zze.The blessings are lovely.
Blessed are You, Lord our God, King of the universe, who has kept us alive, and has preserved us, and enabled us to reach this time.
UPDATE: According to About.com:
The third blessing is recited only on the first time the Hanukkah menorah is lit. Called the Shehechiyanu, it is an important blessing that thanks God for sustaining us and reminds us to appreciate the goodness in our lives.