Rob's set up is a pretty good example of what to look for. If cost is not an issue you will want to go with a prosumer type camera because it will extend your filming time drastically with the advantage of an adjustable iris and gain settings.

I use a Sony PD150 and you can find the PD150 and PD170 on Ebay for very reasonable prices (relatively speaking). I prefer the Sonys because they do a little better in low light than the Canons and already have the XLR jacks and a shotgun mic standard, so that lowers the upgrade costs. If you were to go with the GL2 like Rob's I'd suggest setting it up in a similar manner with the mic adapters and a purchased shotgun mic. It's amazing how much more sound they pick up. Wireless mics are nice to have, but not necessary unless you are planning on doing some more serious production as they let you really hear the hunter.

One of the most important pieces is the tree arm. I learned very quickly that if you are going to do some self filming to get a tree arm that is lightweight yet steady on the the tree and smooth. I have no experience with Pass Thru's arm that Rob uses, but I have heard good things about it. I don't know what it weighs either. From a cost and weight standpoint I would look at the Go Muddy tree arm http://www.gomuddy.com/products/2. They are lightweight and cost effective. They are also being used by some well known film producers so they are very functional as well. Couple it with a good fluid head and you will be in good shape.

Another valuable piece of equipment is a remote LANC controller. This allows you to control your focus, zoom, and recording with your thumb minimizing the amount of movement you make and is absolutely essential if you are filming by yourself.

If you have any questions please feel free to PM me or post them up here and I'll help you out the best that I can.

Good luck tonight!