Congratulations on your new machine!
Many wholesalers require a resale certificate (tax exempt number) to sell. This is mainly for batting manufacturers like Hobbs and Quilter's Dream.
Threads, can't say I'm a big fan of the Essential pro. Bought one cone and was ecstatic when it was gone. My favorite LA quilting thread is Glide by filtec.
http://www.bobbincentral.com/ I also LOVE their prewound magnaglide bobbins. Spendier than winding your own but IMHO totally worth it.
another great source of thread is Metro embroidery thread. Very inexpensive, beautiful thread and a great product, but made in China. I prefer to support US made products when possible (Glide is made in the US)
http://www.metroemb.com/store/
You may wish to get the feel for your machine before investing in a bunch of pantos. I had my machine for several months before I ordered my first ones. I only have a handful of them and while they are great to use, I much prefer working from the front of the machine. I like pantos that are nested and have a portion of the design printed on top and bottom. Makes for much easier lining up when advancing. My favorite source for pantos is Willow Leaf studios.
http://www.willowleafstudio.com/
another thing you will want to consider are rulers and templates. When my dealer delivered my machine I bought a straight edge ruler right off the bat from him. I wouldn't be without my rulers and templates. I love them. I use circles and straight more than anything. Unfortunately willow leaf quit making their straight edge and circle templates. But Handiquilter has some very nice ones. I got some from Erica's. Be forewarned, LA templates are expensive. You will go into sticker shock the first time you look at them. So choose your tools wisely or spread the purchases out over time.
http://www.ericas.com/quilting/tools...mequilting.htm