I'd recommend the Yamaha F310 tone-wise, since I use one as my backup and it really sounds good. Only thing is that it was poorly maintained and is giving me problems now.
Do consider these brands. I find that they are more bang-for-buck specs-wise as compared with big names like Yamaha and Takamine, as some have pickups and still cost below $300-350.
- Cort (Swee Lee)
- J&D (Music Theme, Ranking Sports and Music)
- Custom Acoustic (City Music)
And do try Acepro acoustics at Standard Value / SV Guitars if possible. Mike (the owner) brought in the Yamaha F310 before and if he says that the Acepros are better yet cheaper, I'd take his word for it.