Which Crossbow for Under $500???

[ripinlips]

I have been looking for a while now and keep going back and forth on which one I want to buy. Currently I have narrowed down to 2-3 different ones but every time I look my mind starts doubting and changing. Is there any recommendations out there on Crossbows? The key points are that it would be used for deer in both a tree climber and ground blind for both myself and Dad (who doesn't hunt that often). Any input would be great, thanks in advance.