Any Auto Guiders You Would Recommend??

I'm relatively new to DSO imaging, and need input on an auto guider. I use a Celestron Advanced VX mount, main scope is an Explorer Scientific 80mm ED APO, my guidescope is a Celestron 80mm doublet. I'm not to interested in photo's of the planets, at this point. I would like to shoot the deeper space stuff. I am considering the Orion Starshoot, the Orion G3, the Orion Starshoot Pro, and the ZWO ASI120MM, along with others. I don't really have the budget for a CCD, but would like a guider to carry me through beginning and intermediate stages.Open to your advice. 8O