IMHO, don't limit yourself to a G2. While the G2 is a very nice product, so is the older flat sides. Many prefer the trigger on the flat sides (there are many variations, the latest major improvement being the creation of the "easy open"), as that trigger is sweeeeet!!!.
The G2 can be made to have a very, very good trigger, the old style starts there, and with no additional cost other than maybe the spring out of a bic pen, has a marvelous one.
FWIW, you'll love either.
By the way, you might consider a 30 30, but there are tons of opinions on this subject too.
Good luck, they're awfully fun to shoot.