We always run field wire (approx. 3 inch mesh) with a wooden top rail. The trick is getting the top rail high enough that the horses don't try to reach over and keeping the wire close enough to the top rail that they don't try to reach through. That's not to protect what's on the other side of the fence so much as to protect the fence itself.
We use 4" wooden posts and throw in a 6 or 8 inch every 3rd or 4th one just for extra support. I've never really priced it all out from new since we always seem to be doing part of it with recycled parts. (Old corral poles for the top rail, used rail road ties, etc.). It would fit the bill for being better looking than the pipe-and-cable IMHO.
My experience has taught me that no matter what the salesman tries to tell you, horses can find a way to get hurt on anything you put them in. Therefore, I try to stick with something functional that won't break the bank.
One more thing. I've never put concrete or cement in my post holes. You can do just as good of a job by getting the right moisture in your soil, digging a good, deep hole, and tamping all the way up. Cement just makes it harder to get out when you break something or change your mind. YMMV