samsung ringtones

[KT84]

I have a samsung E630 and it has a melody composer on it, where i can put songs on it, in what looks like sheet music. Does anyone know of any decent websites with the notes of ringtones, or even just sheet music would work probably. I want to change my ringtone and basically cant see why i should pay for it when i can put it in to my phone my self. Basically i am just looking for something similar to the old nokia ringtone sites, however not ones with just the nokia codes on as this is usless for me as the nokia key sequence is different to the melody composer on the samsung.