http://www.idiompress.com/rotor-ez.html will control several rotator models, and is highly recommended.
M2's Orion is probably overkill for your application;
http://www.m2inc.com/products/rotors/or28002.html .
AlfaSpid and Prosistel are relative newcomers with good reputations.
Yaesu rotator controllers appear to have been developed by analog engineers just learning digital design. Unless you have a logic analyzer and enjoy puzzles, stay away.
73,
Dave, AA6YQ