Just bought a TC5 roller and since I have been out of the hobby for quite some time, alot of things have changes.

Local club is running on concrete road course if this helps. I will need to purchase all electronics to get functional.
Need help on following:

Radios - 2ch vs 3ch?
ESC -
Motors - brushed vs brushless
Chargers - Can someone explain LIPO?
Batteries

ETC
Doing some research online, but seems a bit confusing. Can anyone recommend a site for Newbies like myself?