DexCool actually isnt bad stuff, it gets a bad rep though from people claiming it never needs to be changed. The other problem is when its mixed with regular green stuff (sludge).
As for the stuff i use..
Oil - Redline Synthetic 10w40 or 15w50 (depends what season we are in). I was previously a Mobil 1 user but the ZDDP content sucks. The Redline still has a very high amount, and the film strength is far superior. I used to come off into the pits after a DE run with 1.5-2bar oil pressure with 15w50 Mobil 1 , basically same conditions with Redline 10w40 i have yet to see lower than 3-bar!
Brakes - ATE SuperBlue
Coolant - Regular Prestone and .. i know phosphate free is recommend but this is only an issue if you live in a place with alot of minerals in the water, IE almost all of Europe.
Power Steering - Castrol ATF is what i put in last
Transaxle - Redline 75w90NS
Washer Fluid - the cheap crap...

.