I was personally totally unimpressed with the Terra's I looked through. I have always liked the Vipers my buddy uses and they have been through the ringer on several hunts and still work well.
I am a huge zeiss fan, but I can not endorse the Terra line. I think it is short for terrible... Value wise, Vortex gives a decent bino for a buck. They offer a great warranty, (you will use it at some time or another) and they glass is pretty nice for the amount of money you spend. Stay away from the Terra line.
I've been keeping my eyes open for a used set of 12x50 or 15x50 viper HDS for a good price but they go fast when they come around. I just need to go find a pair and take a look through both and see.