Here is a beautiful salawat on the Prophet (PBUH). Check it out in Arabic, Arabic transliteration and English.

Allahumma salli wa sallim wa baarik `ala Sayyidina Muhammad wa `ala aalih kamaa laa nihayata li-kamaalika wa `adada kamaalih.

اَللّٰهُمَّ صَلِّ وَسَلِّمْ وَبَارِكْ عَلَى سَيِّدِنَا مُحَمَّدٍ وَعَلَى اٰلِهِ كَمَا لَانِهَايَةَ لِكَمَالِك وَعَدَدَ كَمَالِه

O Allah! Grant salawat on the Prophet without end on the number of perfection with which You dressed him!