I would say keep off Nokia and specially 3230. I have that phone and it's sound is too bad and camera worse.
I don't think any Nokia phone in this range even has stereo speakers. While the SE phones have really good sound and stereo speakers. My sister owns a W700i and I can say that it has really nice sound and a good camera.
But, IMO girls would either prefer V3i or W300i, both fit in your range and look good.
I think you should go for W300i rather if just sound is a priority and the software should work on any phone having java.
So, I'd say decide b/w W300i or V3i and maybe W700i.