RE: Sight
Make a decision on whether you want to shoot with multiple pins (one for 20, 30, 40 yards) or a single pin adjustable then see what's out there. Don't get the cheapest sight you can find, you may find yourself needing to take a shot in low light conditions and not be able to see your pins because they aren't bright enough. If your bow is fast, I'd consider a single pin adjustable, set it at 25 yards for hunting and learn how high or low to hold it out to 30 yards. If the bow is a bit slower with alot of drop between 20 and 40 yards, multiple pins might be better for you.