I've used the Gabriel servo arms and their control horns and really like them a lot.

The brand is Gabriel. Here is their site:
http://www.ganz-klar-vitrinen.de//shop.php?id=27
http://www.ganz-klar-vitrinen.de//shop.php?id=13

Their site is a little difficult to understand, but you can click on the tabs under 'modelbau' to see the products. They offer regular arms too, and Futaba as well as JR. My first order was direct through them but it was a real challenge with the language difference and I had to specially wire money with western union which was a great pain. Although, my parts arrived before the Western Union was collected, so their service was really good....just cumbersome.

My last order I used the online order from this site and it worked very very easily:
http://shop.lindinger.at/index.php?language=en
You can filter by brand and find the Gabriel stuff:
http://shop.lindinger.at/advanced_se...abriel&x=0&y=0

The only downside was that shipping was a flat rate of 20euros which was rather steep....but still nicer ordering experience, plus I got order tracking information. One of my items was backordered and after some back and forth on email it was sorted out and it arrived yesterday.

As mentioned above, another place that carries them, although not the full range, and their shipping was a lot more reasonable was Phil at FighterAces:
http://www.fighteraces.co.uk/

They come with 3mm ball links which isn't very common in the US. I like to use 3mm titanium rod ends from Central Hobbies, along with their CF rods you can make them up any length you need.
http://www.centralhobbies.com/contro...e/pushrod2.htm

Hope this is helpful.

On a side note, I got these from Lindinger:
http://shop.lindinger.at/product_inf...ducts_id=54821
They work pretty well once installed, was wondering if anyone has found something similar available domestically?

Thanks!