I am not sure if you are after Analog or Digital but take a look at these and a good servo and a great price. At a price tat will not brek the bank i run these in my 1/8 buggy and have no problems with them at all ;
http://www.hobbyking.com/hobbyking/s...2sec_188g.html
http://www.hobbyking.com/hobbyking/s...14sec_66g.html
http://www.hobbyking.com/hobbyking/s...12sec_57g.html