Yeah... I ordered my tires (Sumitomo HTRZ II) through Tirerack.com... I had no problems... fast shipping... they've got like four warehouses from where they ship their rims/tires from... it took about two business days for the tires to get to my front door... I live in Jersey so I chose to get the tires shipped from their Delaware warehouse... I ordered on a Thursday and recieved the tires that Monday afternoon. Very reliable company. Cheaps prices also... especially on tires.
I acually just ordered recently from BOTH Tirerack.com and Discounttiredirect.com. Overall I like Tirerack much better. It took for my tires 4 days to get to me (over the weekend!!!). Discount tire....like 2+ weeks...they actually just got here on Monday. Also they tirerack web info that they send you is much more informative. Discount tire makes you pretty much look for answers like....Where the hell is my order?, etc. The only down side to Tirerack is that you have to pay for shipping while Discount is FREE. But you'll have a long wait that's for sure.
P.S. The last time my buddy ordered tires from Discounttire they charged his credit card TWICE!!! So he had to call them and straighten it out...as well as his bank.
Get the prices off of tirerack.com and go to American tire company, they will match the prices, they may charge you the same price with shipping.
It worked for me and I had a place to mount, rotate, insure, and complain to, if anything ever goes wrong.
I just bought a set of 15x7 Kosei K1's from a guy out of California. He had another set last time I talked to him. The other set was silver I belive. They were 415.00 plus shipping. E-mail me if you want his e-mail address. The guy was very profesional, I trust him.