For a charger, I have an old CE Turbo 35 with the LiPo upgrade. Why? It was cheap and if I feel like cycling new packs it will do that.

Most new chargers will suffice for 1s racing, you don't need anything too exotic. If an iCharger fell out of the sky I would totally use it but I feel that my $350 spent on going faster would be better spent on other things, like tires.