Lafitte. A number of us buy from them. For an extra $100 (one time charge) they will brand them with your winery name or anything you want including images.
Ok, sounds like the shipping will kill it. I'm getting 9 x 1 3/4 corks for 100.00 plus tax. They seem to hold up, I just figured I'd see how much the 1+1's were.
I just ordered 1000 from Lafitte. Total cost was $182.00. It was .12 each for the corkes and $62 in shipping from Napa Ca. It was a fairly large box. I get the 1+1 as you mentioned. I've been very happy with their product. No pricing on their site but they will send you a sample pack with all their corks and pricing for each if you call.