Probikekit.com | Sram Components | EXTRA 15% OFF - SRAM Rival Groupset
It's not an american company, but they have amazing prices, and free shipping to the usa.
I don't know much about sram prices, but this seems pretty cheap (close to 1/2 the price at jensen).
I've ordered tubular tires from them, and it only took about a week to ship.
I went down to the local shop to whom I thought was a good friend owns. His opinionated "help" to me that Sram is crap and to run Shimano. (kinna rubbed me the wrong way) They quoted $1k and I ended up buying for $700.
He was just trying to help. Sram is good for mountain bike stuff, but in the road world it goes Sram<Shimano<Campagnolo.