Here's a couple of sites that might help with deciding what guitar to get, and where to get it. Especially if you don't know much about either the site or the guitar, you can look up reviews of both.

epinions.com
bizrate.com

And usually Yamaha's aren't that bad of guitars, leading me to believe there's something wrong with your set-up (action, intonation, etc). I realize the Pacifica is a cheaper model, but still...look into that.