One of my favorite low wing trainers is the Goldberg Tiger. Since peacefulflyer didn't mention if he wanted to stay electric or go with glow, I can point out that the Goldberg Tiger is available in a variety of configurations:

Tiger 400 Electric ARF:

http://www.carlgoldbergproducts.com/tiger400.htm

Tiger 2 .40 ARF:

http://www.carlgoldbergproducts.com/tiger2arf.htm

Tiger 2 .40 kit:

http://www.carlgoldbergproducts.com/tiger2.htm

Tiger .60 ARF:

http://www.carlgoldbergproducts.com/tiger60ARF.htm

Tiger .60 Kit:

http://www.carlgoldbergproducts.com/tiger60.htm

Tiger .60 Deluxe kit w/ retracts:

http://www.carlgoldbergproducts.com/tiger60D.htm

Tiger 1.20 ARF:

http://www.carlgoldbergproducts.com/12077.htm

Tail dragger conversion kit for Tiger 1.20 ARF:

http://www.carlgoldbergproducts.com/115.htm

There are a number of wonderful configurations for this sweet-flying classic airplane in a variety of sizes and with your choice of glow or electric power systems. No other low wing sport plane has such a variety of configurations or such an enduring reputation for excellence.

There are a lot of great options for you with regard to low wing trainers on the market, but the Goldberg Tiger is in a league of its own.

Here is a nice article from the AMA's Sport Aviator website detailing the history of the Goldberg Tiger:

http://www.masportaviator.com/ah.asp?CatID=5&ID=110

Sport Aviator also did a review of the Tiger 400 electric ARF:

http://www.masportaviator.com/ah.asp?CatID=1&ID=113

A search of user reviews here at RC Universe for all of the Goldberg Tiger variations should be very illuminating. This is a fantastic plane that is a great low-wing trainer. Electric or glow, ARF or kit, you will love your Goldberg Tiger!