150K Maintenance?

[gkinng]

So, I'm about to hit 150,000 miles on my 1998 4Runner Limited. I wanted to know what type of maintenance I should do and what parts should I use.
I am planning on doing this so far:

-Timing belt & water pump and all the seals

I am getting a really good deal on the kit from Olympus auto parts $291 for everything, including tensioner and pullies and all the seals. My question is should i get this or go OEM?

-Lower ball joints (OEM), Inner and outer tie rods (Olympus Auto parts)
-All three drive belts (OEM)
-Transmission drain and fill
-Add a transmission cooler (Which one should I get?)

Stuff I've already done:

-Spark plugs, Wires, PCV valve, and fuel filter.

 

[hambob]

I would get this

Genuine Toyota 3 4 5VZFE V6 Complete 17 PCS Timing Belt Pump KIT | eBay

Its a little more but you get OEM

 

[nissanh]

I got OEM lower ball joints 2 days ago from CamelBack Toyota.com for $167 shipped (free shipping above $150). This is for 1997 4x4 SR5 V6

4333039585 lower ball joint 4-Runner Right 4WD COIL SPRING $85.93
4334039465 lower ball joint 4-Runner Left 4WD COIL SPRING $78.17
Sub Total $164.10
Shipping method - Free Fed Ex Ground S Shipping $0.00
Handling Fee $3.00
Tax $0.00
Total $167.10