Just go for a Wtby S2, best entry rifle by far.... JP.
I have a 770 in 7mm, which is the a very similar rifle I believe.... Everyone says spend a little more and get the savage axis, if your thinking like that save a little more again and get the weatherby vanguard 2 with the redfield scope combo.
The 783 is a Marlin XL7 with a good detachable mag and some inconsistent fit/finish issues. Some aspects are better than the Axis, some worse. I wrote a review on my site: http://ww w.huntinggearguy.com/rifle-reviews/remington-783-review/
At $599, the Weatherby Vanguard 2 is competing with the next class up: Rem 700 SPS, Savage 11/111, Savage 116, and within reach of the Tikka T3, Browning X-Bolt Grey, etc.