Recommended External GPS (Mogul)

[jumpingjeho]

I was wondering if someone could recommend a good external GPS receiver for my Mogul.

I just picked up VITO AstroNavigator II (Star Map) and it's just awesome, while it works pretty good with just simple hemisphere location I'd like to get more precise with GPS and not worry about the internal debate.

I'm pretty new to all this so I have no idea what to expect price range/configuration/compatibility wise.