You can look around
www.newark.com,
www.mouser.com and
www.digi-key.com.
Edit: I got some Axial type capacitors that I'll be adding them up. They are the same width as most of the ESC I have and I'll probably hook it up to my Scorpion controller. They are Nichicon 50V 1000uF each. Should make a good bang when connecting
.