I am trying to decide which bent to buy.  Any suggestions on the terratrike vs sun bicycle?  I am a first time buyer and will be riding mostly on asphalt surfaces althought the crosstimbers trail in tempting.  Has anyone ridden a recumbent on the crosstimbers trail?  It is located on Lake Texoma.

Welcome to the group, your will find more of us on 3 wheels here than any other group in N.Tx  
The best thing you can do first off, is ride the trikes you are interested in at the local bike shops and from owners of trikes here. The unique thing about the EasyRacer EZ Tadpole (http://www.easyracers.com/15H-EZ_tadpole_sx.htm ) is the sear and the newly redisgned steering.
Both of which I prefer. It is also the heaviest trike in production that I know of so you have to decide if you are up to doing hills on it. There are several riders here in the EZ Tadpole and I have ridden the hills with one member around Lake Weatherford area and she didn't have any problems beating me to the top of each climb    
I have another friend who lives near Austin who I ride with when he is in town who rides a Tera Trike that he has ridden coast to coast and enjoyed the trike all the way.
It becomes a matter of preference ,the seat was the big deal for me and why I have the EasyRacer EZ Tadpole in layaway at Bicycles Inc. in Arlington. That is a great place to go if you are in this area and they will turn you loose on the back roads of the local neighborhood to test ride any bike they have.

Thanks for all of the info.  I will check out the easy racer website.  The Bicycles, Inc of Arlington sounds like a great place also.