I haven't played Diablo in quite a while and left my account alone with a lovely 60million so bought a few upgrades and starting to try and build my empire again. Currently at 10million and have had a few nice drops for sale so should be able to hit about 70 or so soon.
Anyway, I'm currently farming Act 3 with the lovely Alkaizer route, which works out well. Using MP1 as MP0 was faceroll, but didn't want to add to much time to how long I should spend on the route.
Your gear looks pretty solid to me, maybe lacking a few resists.
How much crit dmg do you have? Adding more will give you a dps boost. Upgrade the gems in your weps to the best emeralds you can afford, and get some more crit damage on rings.
A dps calculator such as d3rawr / d3up will help you with purchases.
Also, a lifesteal belt will become pretty much essential if you want to try higher MP levels.
Belt, Pants and both rings.
I would go with an IK belt with lifesteal and >200 Str.
Pants: Either Innas with Vita on it or rare pants with Str, 200+ Vita, allres and 2 sockets. There are some really cheap ones in the ah if you have luck.
Rings: Get rings with +dmg, str, crit chance and crit damage. Swap crit damage or +dmg with attack speed if you have to gold and feel you need more.
A Unity with crit dmg rnd roll is quite nice for example but will also cost you a lot.
I now have an Immortal King's belt, which has more Ress All and 2.80% dmg dealt converted to life.
I also bought 2 new rings one which has 180str, 69 ress all, and 36% crit dmg, and a Unity ring which has 163str, 275+ life on hit, 4.5% crit chance and 3% elite damage.
Takes my new stats to:
94,166 damage unbuffed,
112,371 damage with Battle Rage.
455 lowest ress, 503 highest.
55% crit chance
406% crit damage
Armor 5333 unbuffed
Armor 7466 buffed
HP - 39,438
The belt can be upgraded but I don't have enough gold just yet, just want to get an idea of what to aim for next.