I don't think I know of too many ESC rated for only 3 amps. Maybe a 3 amp BEC(the auxillary switch), but most ESC are rated quite a bit higher for motors.
It's not $44 but it is an SC-1 by JR
http://www.jrradios.com/Products/Def...rodID=JRPSP100
The Pro Boat is $39.99, but a lot of us have been having issues with them.
http://www.horizonhobby.com/Products...ProdID=PRB2314
Odd things like the ESC running dry, but cutting out within seconds of hitting the water.
It has been attributed to improper programming, but no verification yet.
That conversation is still on the front page of General discussions
http://www.rcuniverse.com/forum/m_4852730/tm.htm
Also mentioned in the Combat Forum
http://www.rcuniverse.com/forum/m_4284966/tm.htm
Mtroniks makes as variety of different ESC, the Mtroniks Viper Marine15 is fairly economical.
I have been running an Sonik ECO-20, and it has been flawless so far.
http://www.hobbypeople.net/mfr/mtronc01.asp
Anything helpful yet?[&:]