Heirloom Acres Seeds can be hit or miss, depending on what you expect. Takes them a good 3 weeks to fill orders, and that's in Jan/Feb. If you call them up with a problem and get them on the line, they're actually pretty nice. I got ahold of Thom one year when my San Marzano tomatoes turned out to be Striped/Speckled Roman. He sent me a packet of SM's and a freebie packet.
But yeah, if you need quick shipping, Territorial, Irish Eyes, Baker Creek, Nichols are better bets (but can be a little more expensive).
As for seedlings, it may be a bit late in the season to get them, but I believe Seed Saver's Exchange or Seeds of Change might do plants. Your best bet may be to track down your local farmer's market and stalk the booths and talk to vendors if you can't find any plants there. Mine has had at least a dozen booths selling seedlings this year, easy. Two years ago, there were 3, sometimes 4 stands/people.
