I've been looking around at the 2011 G37 Coupe Journey with the Premium and navigation package. I've asked around and the price I've got down to was $42,000 OTD. I live in California and I don't know how much more I can get down.

 

It's kind of hard to comment on OTD prices since we don't know how much the tax, license, doc fees, reg fees, dealer add-ons, etc are (can be a couple thousand difference from place to place).
The 2011 coupe isn't available through the Zag network (only the 2010) so maybe dealers aren't discounting it much. Invoice is $39769, so if I take a wild guess at your tax, license, doc, etc, you're probably around $2000 under invoice, which would be a pretty good price

 

Go to Edmunds.com. I've found them very helpful

 

wow $42k Out the Door Price ? That is Amazing deal !

I am in Cali as well.
I just recently bought my 2011 G37 Journey coupe with the exact same packages as you. MSRP $43800. I got it to around $40000 before tax. OTD for me was $44k. MUCH more than your price.