specific suggestions...
Ennamo Yedho from Ko
Nenjukkul Peidhidum from Vaaranam Aayiram
Oru Devadhai from Vaamanan
Oru Kal Oru Kannadi from Siva Manasula Shakthi
Pookal Pookum from Madrasapattinam
Hosanna, Omana Penne from Vinnai Thaandi Varuvaaya
Thuli Thuli from Paiya
Munbe Vaa from Sillundru Oru Kadhal
Vennilave Vennilave from Minsara Kanavu
Ennavale Adi Ennavale from Kadhalan
Ale Ale from Boys
Iragai Pole from Naan Mahaan Alla
Kangal Irandaal from Subramaniapuram
if you want more, i'd suggest you try looking for AR Rahman/ Harris Jeyaraj/Yuvan Shankar Raja music...