Discount Tire Direct is where I order from. My last 4 sets on my car, and the current set on my girlfriend's are from them, delivered to my house with free shipping (they also ship to any shop you wish, but I like to inspect the merchandise for myself). Then I take the tires to their sister company, Discount Tire and have them installed. These guys have a great selection of brands and models from budget all the way through DOT track tires. I option for the replacement warranty that helps cover the remaining life of the tire in the event of a nail or something, as it's already saved me once. Dealing with DTD and DT is an absolute pleasure and they're always willing to go out of their way for you. Also, they commonly have sales that reward a sizable refund in the form of prepaid VISA credit cards. I usually time my purchases to take advantage of those large deals. I believe they will match or beat any listed price of tires they have with competitors, but I usually see their prices as the lowest when you include the total costs from some others (e.g. shipping).
Last set I tried out the
BFGoodrich G-Force Comp 2 A/S's and absolutely love them. I drive a 2006 Acura RSX Type-S through the mountains a few times a year and enjoy hugging corners and spirited driving in general. I've had exactly 1 time where these tires felt like they reached their limit. I bought my second set of these tires because they performed so well, and lasted 40k as advertised. Wet traction isn't amazing, but it's better than most others I've tried. Prior to the Comp 2's I used Nitto's NeoGen's. They're great tires as well, but their wet traction wasn't as good. Since I daily drive this vehicle, I need a jack-of-all trades tire with an emphasis on traction for lateral control.
Anectdotal story time: The last time I had my baby in for work I had the new set of tires balanced and put on. After I drove away I noticed I had an audibly louder exhaust note than I drove in with. I got home and quickly inspected my exhaust to see if I was hearing things and sadly I was not. I drove back to the shop and told them that something wasn't right. After a quick investigation, the manager took it upon himself to start an internal incident investigation and requested I had the vehicle inspected so their investigator could determine their level of fault. After this I dug into it more and discovered the accordion flex-pipe had a hole in it, on the top side (inches from the underbody). This was likely due to wear from rust and not anything that the shop could've done and purely coincidental. I informed the investigator of that and they still offered to help pay for half of the cost of the replacement exhaust header, downpipe, and midpipe I ordered already. I declined, as I couldn't in good conscience accept money for something that wasn't their fault. It was an opportunity for a small upgrade anyways.