WOW..... you're gonna get plenty of feedback on this topic, might even start an arguement or two.
First off, CONGRATS on the new Hoyt, awesome bow!!! I have both the '03 Cyber and the new '04 XTEC and they are awesome shooting bows just made for whitetailin'. Looking forward to your feedback on the rig when you get it together.
For serious treestand bowhunting you won't find a better sight then the Trophy Ridge MANTIS. This awesoem sight also doubles as an adjustable moveable pin sight to keep you dead-on from the ground. So no matter if you're tucked in a brush pile waiting for a deer or stuffed in the turkey blind waiting for a Gobbler or even some friendly competition at the local 3D range, this sight will be perfect.
For rests I'd also suggest looking again at Trophy Ridge. As many on the forums will attest the DZ has become an incredibly popular rest because it works!!! Flawless b-head tipped arrow flight is the advantage of this top quality fallaway. Of course with a fallaway you can use an agressive amount of helical for maximum shootability with your favorite hunting head and never have to worry about clearence issues again. Simple, solid, quiet, what more could you want in a hunting rest.
For a release let me suggest the TRU BALL Short-N-Sweet II. This lightweight, compact, super accurate, comfortable little release is the ultimate for using a rope loop on the string which is going to be the most forgiving set-up on you new hunting rig. You'll certainly want to check this baby out.
For a quiver, I again have tried many of the popular detachable versions. I like the Bohning Lynx 4 over the Alpine and Kwikee models. I think it just feels better on the Hoyts.
For arrows I would suggest looking into one of many quality carbon shafts. I personally prefer the CX 3D Select but I've also had good results with the Gold Tip 3D Pros. Both Carbon Express and Gold Tip offer many different grades of shafting but I would strongly suggest buying the best you can afford. I have also been hearing a great deal about the new Easton ST Axis and based on the feedback from reliable sources I WILL be taking a look at these little industructable shafts.
I hope some of these suggestions help with your "ultimate" hunting rig. Good luck and good shootin'