I've also had excellent service and seeds from Totally Tomatoes. And ordered from Fedco the past couple of years and was very pleased with them (and found some seeds that I hadn't been able to locate anywhere else).
Thomas, do you want to share what kind of seeds you're looking for? I always try to consolidate my seed orders to as few companies as I can because the postage can end up costing a fortune otherwise...
Johnny's is definitely another go-to seed company for me, and they have lots of great growing info on their website as well.
I'm glad you started this thread -- I was also wondering about Reimer.