Mike,
You avoided one of the most common mistakes new archers make, being overbowed. Too many newbies buy a bow that is too heavy for them and can't shoot it so they give up. Worse yet, some will suffer an injury thanks to the strain. Just like any other physical activity it takes time for your muscles to develop. If you can't come to full draw and hold it steadily and comfortably for at least 15 seconds, you need to either go to a lighter bow or work on developing your drawing muscles.
There are those who claim that you need a bow of around 60# draw weight in order to hunt deer. I've frankly never seen a deer that requires that much poundage. I can personally attest that a razor sharp two-edged broadhead launched from a 40# bow will blow all the way through the chest of the average Texas whitetail. As with most hunting tools, it is not so much what you shoot as where you put the projectile. I have a friend who has collected his deer every season for as long as I've known him with a .40 cal flinter. When I started shooting muzzleloaders almost 50 years ago .45 was considered an all-around caliber and .50 was a big-bore mostly used for elk or other larger critters.
One last thought about your bow. If you plan to hunt with it check your local regulations. Here in Texas there is a requirement for at least a 40# draw weight.
Russ,
I like the site. Think I may stick around for a while. I would have joined already if there was a way to do so online. (Hint, Hint)
Storm