I like that receiver for that price, like gsxr said you can get a blue tooth adapter, there are a few options out there... the logitech seems to get good reviews...
For mounts I use omni mounts they work really well and are over built...
http://www.amazon.com/OmniMount-Wall-Ceiling-Audio-Mount/dp/B00006K0WT/ref=sr_1_5?ie=UTF8&qid=1411092176&sr=8-5&keywords=omni+mount them are each so you will need 2, I am not sure how what you are trying to specifically mount and where, the fronts, surrounds, center? pics and a description will help you get the correct ones...
If you look in the link in my signature below you can see how Imounted my 200se's to my ceiling...
Now for cables, depending on which devices you are trying to plug in and how far away they are will depend on which cables, mono price is a good place to start looking..
Cables - Monoprice.com
give us some more info and we can let you know specifically where to look, mono price also sells mounts I believe...
As far as the equipment you bought, you will be floored if you compare it to a HTIB {home theater in a box}, them speakers surprised me I think they are one of the best values in audio rite now, Dave F. from ascend designed them, and they sound fantastic, you just dont get anything that nice for such a small investment. The cabinet isn't any super special veneer and they are just squared speakers, BUT they sound great... THem fluance surrounds are also a good choice for the money, I can not think of any better I have bought a few sets of them and recommended them to a lot of people who I haven't heard a negative thing about... I actually installed a set in my mothers ht... The sub is about the best you can do for under $400, it has decent output, they don't break down when taken care of, and it will do the job, think about it $185 what does that buy anymore? Its a nice sub, the low budget staple that is better by 10 over any htib 8" or 10" sub I ever heard...
So anyway, good luck with anything, keep this thread saved so you can post any questions and your thoughts about how everything worked out, we love to see pics too...
PS the owner of wave crest Audio is a member here and I am sure would love to hear what you think about his speakers, I personally think they are the go to low budget bookshelf for stereo and HT... XTZ {who replied above} also has some budget speakers available {I think I am going to have to buy a set of books for myself to listen to, so I can recommend them, because the price point is good} , I try not to recommend anything I have not owned or at least heard, I have played with that avr, I own a pair of wave crests, I have heard the bic sub many times {my sister owns one, I bought her an HT for her house warming gift} and its all decent stuff, I have also dealt with Accessories4less and denon refurbs, and I have been nothing but happy...