Why do people assume that you have to use a release aid? The PSE Nova should have enough lenght to shoot off fingers at that poundage without any trouble.You need advice you are entering a class of archery in which arrows can go a long way, where 40 yds is reguarded as close range and where arrows can do a lot of damage to people if you miss the target in your back garden and the arrow goes over the fence. The Nova is not a bad bow (There are no bad bows just reasonable, good and great bows) it is capable of shooting well in the hands of a competent archer. If you ask about shooting off fingers and get blank looks at the club then do not be supprised, learn with a release aid .As I found out shooting compound off fingers is very different.
PS have a look through
www.quicks.com the online shop and catalogue to find out what arrow rests etc is out there and find out what they look like.