General ESC Theory Discussion

Anybody have a link to some Low-ESR caps that are similar to what is on the Mamba Max ESC? I was thinking about adding a cap bank to help it run a little cooler (only gets to around 120F with a fan and a medusa 4800 kv pulling some hefty gearing). I would like it to run even better though... It's starting to get into the low 90's down here in Florida, so I'd like some extra cooling insurance.

Also, I should solder them closest to the power leads, yes?