Nice Blkdrgn, real nice. Not only do you have excellent gear in each slot, you also have rare rolls in each piece (Witching Hour with All Res, Vile Wards with Vitality, Nat's Embrace with +9 Disc).
Hell, you even have a Nat's Sight with built-in 6 Crit Chance!
Honestly, I think your biggest problem is that there isn't anything for you to upgrade...
there are tons of better gear out there. it just cost a lot. there are way better players then me and some of them are on this forum. Take a look at Beast's profile. He was my idol when i first started. There is no way i can keep up with him.
Oh, I did check out his profile... that stuff is just insane. Really though, there comes a point where your gear is BiS, and improvements are gonna be marginal for the shear amount of gold or cash needed to attain them.
I use people like you and Beast as a model, but its slow process. I find that my level of gear and what I am willing to spend is increasing in lockstep as I progress...
Hell, last month, I wasn't buying anyting north of 2-5 million. Now I'm looking at 20-30m items thinking "hey! that's a great deal!". With builds like your's I bet its more like "300m! Sweet! a Bargain!" :o)