Marlin makes a good rifle. I have a Model 1895 in 45-70, sweet gun. I say go for it. Big 5 has the Marlin 30-30's on sale from time to time for ~$275 or so, but I have heard that the recievers are not drilled and tapped for scope mounts or aftermarket sights. /forums/images/graemlins/dunno.gif
I have a Savage Model 99 30-30, it's definitely a nice caliber. If you go to buy one, ask if you can look at a few different ones. You will be able to pick one out where the wood looks a bit better than the others, or the checkering looks better, or whatever. Just look at a few of them, there will be minor differences with fit and finish, you can then pick the best one. And, Marlin is still made in USA!