Not sure what bows Cabella’s sells, but for a beginner, I would suggest starting with a bow that costs around $150. You need to know your draw length and weight. The standard draw length is 28”, which would be for a man of average height and arm span, say 5’9” - 5’11”. If you are in this category, you will be looking for a recurve that is 60” - 62” in length or a longbow that is 64” - 66” in length. You should choose a bow weight that you can hold at full draw for a few seconds without shaking. For beginning men, this often means a bow of about 35#. It is much easier to learn on a bow you can control than one you have to struggle with. Whether you choose a recurve or a longbow is really a matter of personal preference. Recurves generally are faster than longbows, but more finicky. You can buy a new bow from the bowyer or retailers such as Cabellas or 3 Rivers. You can often get a better deal on a higher quality bow by buying used, either from the classifieds here or other places. You have to do your homework when buying used, and should plan to pay about 50-60% of the retail price of a new bow.
Next is how you learn to shoot it. Best would be a class from a known expert, such as Rod Jenkins or Rick Welch. If that is not possible right now, there are videos available, such as Masters of the Bare Bow, or YouTube videos from Arne Moe (Moebow) who is a highly qualified instructor here on TradGang. After you have practiced for a while, send in a video and Arne will evaluate it.