[comanchedude]

Opinions will vary of this subject. if you just need a rad, most any after market replacement unit will do the job. ( I prefer copper units) and if your factory fan system is working correctly its less expensive to just replace the rad. if you choose to go electric (I run Electric) it has a double cost setup. also make sure you have a alternator to support the electric fan a good fan (or fans) will require 20 to 40 amps so 90 amp alternator and above is recommended
but if you just replace the rad ,it will be much cheaper and will do just fine for stock setup.. as for brands I really don't think its matters that much.