I was also going to suggest Craftsy and other dvds to learn. There are lots available - HandiQuilter has some - and now has a series of sit down quilt machine dvds for those of us who have a big sit down machine like me.
There are also some great dvds available by Jamie Wallen or Dusty Farrell if you want something different.
When I had a frame/machine combo the best advice I was given was load fabric... start at the top and start quilting lyrics, poems, whatever until you get to the bottom. When you get to the bottom your stitches will be perfect and you'll feel really comfortable with it. It really helped me a lot - although I was lazy and just quilted over the same area over and over again.