Hello gmorf33,
I think that you'll be fine, as long as you get at least two bolts into each stud. I would also pick up some
E-Z Anchors that are rated for at least 50 pounds. I installed four or five of them in various load bearing areas on my wall mount.
As far as your cable management is concerned, I would recommend that you pick up a speaker/cable management track. They are readily available at Home Depot, can be painted, and finish off really nice. I use one to hide my speaker cables, component cable, and HDMI cable that come from my stand located below my TV.
