Scott:

I strongly recommend www.ushobbysupply.com:
http://www.ushobbysupply.com/product...products_id=53

I ordered the Hitec HS-55's - a little smaller, and had to mount them with servo tape & wire ties, but I like them better - more reliable than the stockers:
http://www.ushobbysupply.com/product...roducts_id=223

Michael usually/almost always ships right away, and I normally get my parts from him within 3 business days. He stand behinds his business, too.